A function of the nervous system?
protection and activation of an effector organ
The central nervous system contains the brain and the spinal cord?
2. false
Which of the following are not major divisions of the peripheral nervous system?
a. Somatic nervous system
B. Autonomic nervous system
C. Sensory division
D. Motor division
E. Central division
E. central division
The somatic motor component of the primary nervous system is involuntary?
4. False
While studying for an exam, you reach for a beverage. To extend your arm,your_____________ nervous system is activated?
Somatic
The door slams shut loudly and you flinch. After a few seconds, you realize that your heart is beating very rapidly and forcefully. This response is the result of your ____________ nervous system?
autonomic
Is oligodendrocyte cell in the CNS or the PNS?
7. CNS
Is the nuclei cell in the CNS or the PNS?
8. CNS
Is the Tracts cell in the CNS or the PNS?
9. CNS
Is the Schwann cells in the CNS or PNS?
10. PNS
Is a ganglia cells in the CNS or PNS?
11. PNS
Is the nerves cells in the CNS or PNS?
12. PNS
What is the cell type?
The most abundant and versatile glial cells, cling to neurons, synaptic endings and capillaries
astrocytes
What is the cell type?
small ovoid cells with thorny processes that migrate towards injured neurons and phagocytize microorganisms.
Microglial cells
What is a cell type?
Squamous to columnar cells that line the central cavities of the brain and spinal column;promote circulation of cerebral spinal fluid (CSF) through ventricles.
Ependymal cells
What is a cell type?
processes wrap CNS nerve fibers forming insulating myelin sheaths.
oligodendrocytes
What is the cell type?
Surrounded PNS fibers and form myelin sheaths.
Schwann cells
What is the cell type?
long-lived cells that are amitotic, have a high metabolic rate and function in electrical signaling.
Neuron
What portion of the diencephalon is considered to be the relay station for information coming into the cerebral cortex?
Thalamus
Match the appropriate description of gray and white matter with its location in the nervous system.
Inside core of gray matter, middle layer of white matter and outer layer of gray matter.
A. spinal cord
B. Brain
B. brain
Match the appropriate description of gray and white matter with its location in the nervous system.
Central cavity surrounds by a gray matter, external white matter.
A. Spinal cord
The dendrites contain most normal cell contents: and a spherical nucleus with necleolus and have well developed Golgi apparatus.
22. False
The clusters of cell bodies are called nuclei in the CNS.
23. True
The dendrites convey electrical signals away from the cell body.
24. False
The position of the axon that communicates with its target cell is the?
Cell body
Which of the following are not functions of the myelin sheath?
A. increase the speed of nerve impulse transmission
B.protect the axon
C. Electrically insulate the axon
D. Provide structural support for the axon
D. Provide structural support for the axon
what is the main visceral control center of the body, control blood pressure, heart rate, digestive functions and add centers for emotional responses?
Hypothalamus
what are the appropriate steps in the functional classification of neurons?
Stimulants --> Receptor--> _________--> integration Center-->__________--> effector---> Response.
Sensory neurons; motor neurons
Afferent; transmits impulses toward the CNS?
29. Sensory
Efferent; transmit impulses from the CNS to effectors?
30. Motor
The outer cortex of gray matter present in the cerebellum is composed primarily of?
neuron cell body
What is the name of the heart of the brain that is the site of conscious mind: awareness, sensory perception, involuntary movement, communication, memory storage, and understanding or higher learning?
Cerebral cortex
Each hemisphere of the brain will not to the contralateral side of the body?
33. True
The primary motor cortex is found on the__________area of the brain.
pre central gyri
Which lobe is responsible for the motor part of speech?
frontal lobe
Which of the following is not a lobe in each cerebral hemisphere?
maxilla
Which lobe is responsible for vision?
occipital lobe
Which lobe is responsible for somatosensation or something pain, temperature and pressure?
parietal lobe
Which structure is responsible for or naming smooth movement?
Cerebellum
The olfactory cortex is located in the _________ lobe?
Temporal
The gustatory cortex is located in the_______ lobe?
Insula
The vestibular cortex is located in the__________ lobe?
Insula
An Association area helps to enter the information coming from a primary area of cortex?
43. True
The multimodal Association areas are responsible for receiving inputs from multiple senses and allowing us to give meaning to information that is received and stores it as memory.
44. True
The basal nuclei areas are responsible for receiving inputs from multiple senses and allows us to give meaning to information that is received and stores it as memory.
45. False
Which of the following is not a function of the basal nuclei?
A. It is thought to influence muscular control
B. Helps to regulated attention and cognition
C. inhabits antagonistic and unnecessary movements
D. regulate intensity of slow or stereotyped movements
E. Responsible for receiving input from multiple of and gives meaning to information.
E. Responsible for receiving inputs from multiple infant and give meaning to information.
Which of the following is not considered to be part of the multimodal association area?
A. Anterior Associate area
B. Posterior association area
C. limbic association area
D. Basal Association area
D. Basal Association area
What is the name of the structure that connects the right and left, hemispheres and allows information to cross?
corpus callosum
Which term refers to the crossing of motor fibers in the medulla oblongata of the brain stem so that the left side of the brain controls the right side of the body?
contralateral control
Which layer of meninges is loosely attached by web like fibers, allowing a space for the movement of CFF?
Arcachnoid
Which of the four categories is responsible for pain, touch, temperature, the muscles sense, pressure, and vibration?
A. Special sensory
B. General sensory
C. Somatic motor
D. Visceral motor
B. General sensory
Which structure connects the cerebellum with other portions of the brain is name means "bridge".
Pons
What is the name of the structure that forms the CSF?
choroid plexus
what is the correct order of CSF flow through the brain?
lateral ventricles, intraventricular foramina, third ventricle, cerebral aqueduct, fourth ventricle
The outer gray matter of the brain that is the most evolved part of the brain and is responsible for conscious thought, reasoning, and abstract mental function is called?
Cerebral cortex
Which of the following is not considered general senses?
A. Pressure
B. temperature
C. Pain
D. touch
E. equilibrium
equilibrium
Which of the following structures are not considered to help protect the brain?
A. Bone
B. Meninges
C. CSF
D. Myelin
Myelin
Which functional brain system is responsible for controlling all aspects of emotion?
limbic system
Which of the functional brain system is responsible for governing arousal of the brain as a whole?
Reticular formation
Which is the name of the functional range system that sends impulses to the cerebral cortex to keep it conscious and alert, and helps to filter out repetitive and weak stimuli?
Reticular activating system
The____________ of the brain is the location of our conscious mind?
Cerebral cortex
Of the following brain regions, which, if severely damaged, would result in death?
Medulla oblongata
Cerebral spinal fluid is produced by___________(structure) and is located in ____________ (part of the diencephalon)?
Choroid plexus; epithalamus
The blood brain barrier is not permeable to ____________?
water-soluble substances
The terminal portion of the spinal cord is called ______________ and it ends at the __________ spinal level?
Conus Medullaris; L1-L2 (lumbar) vertebral levels
In the spinal nerves, the dorsal root ganglion contains motor function?
66. False
Cervical has how many spinal nerves?
Eight
Thoracic has how many spinal nerves?
Twelve
Lumbar has how many spinal nerves?
five
Sacral has how many spinal nerves?
five
Coccygeal has how many spinal nerves?
One
The__________ portion of the spinal cord control muscle movement?
Ventral
What is the term used for the connective tissue layer that encloses the individual axons and Myelin sheath of a nerve?
endoneurium
Most nerves are mixtures of afferent and efferent fibers and somatic and autonomatic fibers?
74. true
Acetylcholine is a Nerotransmitter used in skeletal muscle for muscle contraction and in the sympathetic nervous system.
75. False
Match the following description with being and active associated with the sympathetic or parasympathetic nervous system. Mark C for sympathetic or Mark D for Parasympathetic.
76. Referred to as rest and digest
77. Referred to as fight or flight
78. Blood flow is shunted to necessary tissue (skeletal muscles and heart) and away from less critical systems (brain, digestive organs, and skin)
79. Bronchioles dilate to allow more gas exchange
80. blood pressure, heart rate, and respiratory rates are low
81. Liver releases glucose for energy
82. Gastrointestinal tract activity is high
83. Pupils are constricted and lenses are accommodated for close vision
76. parasympathetic
77. sympathetic
78. sympathetic
79. sympathetic
80. parasympathetic
81. sympathetic
82. parasympathetic
83. parasympathetic
A synonym for the autonomic nervous system reflects its major function. The synonym is_____________?
The involuntary nervous system
What is the name of the general receptor type that would respond to stimuli arising outside of the body?
exteroreceptor
What type of sensory receptor is sensitive to pain causing stimuli?
Nociceptors
What type of sensory receptor is responsible for detecting movement?
Mechanoreceptors
Is sensation of the conscious interpretation of stimuli?
no (false)
Nearly half of the cerebral cortex is involved in processing visual information and 70% of all sensory receptors are in the eye?
82. true
What structure of the eye is part of the fibrous tunic, and is made of top connective tissue and appears white?
sclera
What structure of the eye contains the rods,cones and retina?
nervous tunic
What structure of the eye is a soft, jellylike substance that fills the entire posterior to the lens that is "glass like," maintains the shape of the eye and aids in refraction?
Vitreous body
What structure is highly sensitive to light and functions best in dim light?
Rods
Which division of the year contains the incus, malleus, and Staples?
middle ear
What is the term used to describe the external portion of the ear that is visible and protecting, composed of cartilage?
Pinna
Where is the Eustachian or auditory tube connected to?
the pharynx and the middle ear
Which of the following is not considered a receptor for taste?
Peppery
Hot and cold pain receptors are separated from one another?
91. true
Which vitamin is helpful for manufacturing rhodopsin, the light-sensitive pigment?
Vitamin A
There are two categories of muscles in the eye, muscles that control extrinsic movements and muscles that control intrinsic movements?
93. true
The sense of smell and taste are not closely related?
94. false
What stimulates uterine contractions, initiates labor and initiates milk ejection?
Oxytocin
what stimulates milk production by mammary glands: promotes lactation?
PRL
What stimulates growth and hormonal activity of ovarian follicles, stimulates growth of testes, promote sperm cell development?
FSH
What stimulates kidney tubule cell to reabsorb water?
ADH
What stimulates liver, muscle, bone, cartilage, and other tissue: anabolic hormone: stimulates somatic growth, mobilizes fats, spares glucose?
GH
What stimulates the adrenal cortex to promote release of glucocorticoids and androgens?
ACTH
What stimulates the thyroid gland to release thyroid hormones?
TSH
What stimulates abolition and a very and production of estrogen and in males promotes testosterone production?
LH
Which of the following are not secreted by the anterior pituitary?
A. TSH, LH
B. ADH, oxytocin
C. ACTH, oxytocin
D. GH, PRL
E. ADH, LH
ADH, oxytocin
Which of the following are not major functions of what hormones will control for integrate?
A. Reproduction
B. Maintenance of electrolytes, water, and nutrients balance in blood.
C. Regulation of cellular metabolism
D. Physical protection
e. Mobilization of body defenses
D. Physical protection
The endoctrine system uses ducts to deliver hormones two different areas of the body
105 false
Water soluble hormones act on receptors in the plasma membrane and are usually coupled with regulatory molecules called G proteins.
106 true
Thyroid hormone is a water-soluble hormone.
107 false
Target cell activation occurs by binding a hormone to a receptor site, but what other components are also important to the effectiveness of the hormone?
A.blood levels of the hormone,C. relative numbers of receptors for that hormone on or in the target cells, D.the affinity of the binding between the hormone in the receptor.answer is capital E. All of the above except B..
What is the correct order of the steps for lipid soluble, steroid hormones that diffuse into their target tissue to activate a gene directly?
The steroid binds to the plasma membrane, this triggers a G protein,the G protein binds with specific DNA region, and the binding initiates translation of the gene to M RNA, the M RNA then directs proteins synthesis.
Endocrine glands that secrete their hormones in direct response to changing blood levels a certain critical ions and nutrients is called?
humoral stimuli
___________ is the term used to describe what happens when low-level of a hormone can cause its target cell to form additional receptors for that hormone.
up regulation
What hormones promote salt (and thus water) retention and potassium excretion?
aldosterone
What hormone increase metabolic rate, influencing both physical and mental activities; requiring for normal growth.?
T3 and T4
What hormone increases blood pressure and heart rate; activates cells influenced by sympathetic nervous system plus may not be supplied by sympathetic nerves?
epinephrine
What hormone regulates exchange of calcium between blood and bones; increases calcium level in blood?
PTH
Which of the following hormones is not released in the adrenal cortex?
A. aldosterone, mineralcorticoids
B. Cortisol, glucocorticoids
C. sex hormones, gonadocorticoids
D. catecholamines, epinephrine and norepinephrine
catecholamines, epinephrine and norepinephrine
Which portion of the brain controls the pituitary gland?
Hypothalamus
The master gland of the body is the?
parathyroid gland
Which pancreatic cells produce insulin?
Beta
Which is not a function of hormones?
A. Regulation of growth
B. Regulation of metabolism
C. Regulation of the reproduction
D. Regulation of behavior
E. Regulation of thoughts
regulation of thoughts
Name the adrenal hormone?
Have kidneys increase blood levels of sodium and decrease blood levels of potassium, sense of water reabsorption accompanies sodium retention, blood volume and blood pressure rises.
mineral corticoids
Name the adrenal hormone?
Promotes gluconeogenesis and hyperglycemia, mobilizes fats for energy metabolism, stimulates protein catabolism, assists body to resist stressors, depressed inflammatory and immune responses.
Glucocorticoids
Name the adrenal hormone?
Insignificant effects in males, but contributes to female libido development of pubic and axillary hair in females; source of estrogen after menopause.
gonadocorticoids
Name the adrenal hormone?
Sympathetic nervous system targets organs; effects mimic sympathetic nervous system activation; increase heart rate and metabolic rate; increase blood pressure by promoting vasoconstriction.
catecholamines
Fill in the missing steps for appropriate regulation of thyroid hormone secretion.
____________--> TRH -->______________--> TSH-->____________--> thyroid hormones T3 or T4--> Target cells.
hypothalamus B,A,C
anterior pituitary
thyroid gland
Which of the following stimulate metabolic activities, bronchial dilation, and blood flow to the skeletal muscles and the heart?
Epinephrine
Which of the following are not functions of the adrenal medulla?
A. Blood delivered to sex organs
B. Blood glucose levels to rise
C. Blood vessels to constrict
D. The heart to beat faster
E. Blood to be delivered to the brain, heart, and skeletal muscles
blood delivered to sex organs
Which of the following is not true of gonadocorticoids?
A. The onset of puberty
B. The appearance of secondary sex characteristics C. Sex drive
D. Stimulation of the ovarian follicles
stimulation of the ovarian follicles
Which of the following are true of cortisol
A. Keeps blood sugar levels relatively constant
B. Maintains blood pressure by increasing the action of vasoconstructors
C. Increase blood calcium
D. a and B
E. A and C
D. A and B
Which of the following is not considered to be a mechanism of aldosterone secretion?
A. renin-angiotensin
B. Plasma concentration of K
C. calcitonin
D. ACTH
E. Atrial natriuretic peptide (ANP)
calcitonin
Name the appropriate zone in the adrenal cortex to its appropriate corticosteroid produced
zona glomerulosa
mineralcorticoid
name the appropriate zone in the adrenal cortex to its appropriate cortisteroid produced
zona fasciculate
glucocorticoid
name the appropriate zone in the adrenal cortex to its appropriate Cortisteroid produced
zona reticularis
gonadocorticoid
Which of the following is not a function of the parathyroid?
A. Stimulate osteoclasts to digest bone matrix
B. Enhances reabsorption of Ca2 and secretion of phosphate by the kidneys
C. Promotes activation of vitamin D (I the kidneys); increase absorption of Ca2 by intestinal mucosa
D. Negative feedback control; rising Ca2 in the blood inhibits PTH release
E. stimulate osteoblasts to deposit more calcium matrix
e. Stimulate osteoblasts to deposit more calcium matrix
Antagonist to parathyroid hormone (PTH), inhibits osteoclast activity and release of Ca2 from bone matrix
calcitonin
T4 is represented as a larger percent then T4, but T4 is 4-10 times as potent.
136. true
Fill in the blank with the appropriate steps in stimulating the adrenal cortex. Hypothalamus-->___________--> adrenal cortex-->________________.
CRH, release corticosteroid hormones
Which of the following is not included in the hypopyseal portal system?
A. Inferior hypopyseal artery
B. Primary capillary plexus
C. Hypopyseal portal veins
D. Secondary capillary plexus
A. Inferior hypopyseal artery
Hypopyseal is another name for?
pituitary gland
Where are posterior pituitary hormones synthesized?
In hypothalamic neurons
Another name for growth hormone is?
somatotropin