Which of the following is NOT a function of Pacinian corpuscles?
- a) Detecting light touchb) Responding to sustained pressurec) Detecting pressure over a large aread) Providing tactile feedback during joint movements
a) Detecting light touch
Explain the difference between rods and cones in the retina. Include their location and function
Rods are more numerous, located on the periphery of the retina, and responsible for night vision; cones are concentrated in the fovea and provide color vision
Meissner's corpuscles are responsible for detecting heat sensations.
- True
- False
false
The receptors responsible for detecting pain are called __________
Nociceptors
Which of the following thermoreceptors detects cold
sensations?
a) Ruffini’s end organ
b) Meissner’s
corpuscles
c) End bulb of Krause
d) Pacinian corpuscles
c) End bulb of Krause
Describe the function of the cornea and how it contributes to vision
The cornea helps focus light entering the eye and contributes to the overall refractive power of the eye.
The fovea is responsible for:
a) Color vision
in dim light
b) Sharp central vision
c) Detecting
sound
d) Night vision
b) Sharp central vision
The optic nerve connects the retina to the brain and contains photoreceptors.
- True
- False
false
The clear, watery fluid produced by the ciliary body that fills the space between the cornea and lens is called _________
Aqueous humor
function Sclera
Provides the white outer covering of the eye
function Pupil
Regulates the amount of light entering the eye
function Lens
Focuses light onto the retina
function Retina
Contains photoreceptors for vision
function Choroid
Pigmented layer, responsible for night shine in nocturnal mammals
The semicircular canals are responsible for
detecting:
a) Sound vibrations
b) Head position and
movement
c) Air pressure changes
d) Vibrations in the cochlea
b) Head position and movement
What is the function of the Eustachian tube in the middle ear?
- The Eustachian tube equalizes air pressure in the middle ear with atmospheric pressure.
The stapes is the first bone in the ossicular chain of the middle ear.
- True
- False
false
The coiled, snail-shaped structure in the inner ear that contains hair cells for hearing is called the _________
cochlea
Malleus
b) Vibrates in response to sound waves
Cochlea
a) Transduces sound waves into neural signals
Tympanic membrane
b) Vibrates in response to sound waves
Vestibule
c) Connects the middle ear to the throat
Saccule
d) Helps detect up or down movement
Which part of the brain is primarily responsible for motor control
and higher cognitive functions like thinking and
decision-making?
a) Parietal lobe
b) Cerebellum
c)
Frontal lobe
d) Medulla oblongata
c) Frontal lobe
The corpus callosum connects the two hemispheres of the cerebrum and allows for communication between them.
- True
- False
true
- What are the functions of the medulla oblongata? List at least three.
Regulates breathing, heart rate, swallowing, and digestion
The cerebellum coordinates balance and movement and is located below the ____________.
Cerebrum
Temporal lobe
d) Involved in hearing and smell
Occipital lobe
c) Responsible for vision
Pons
b) Coordinates involuntary actions like breathing
Limbic system
a) Regulates emotions like aggression and feeding
Cerebrum
e) Involved in thought, motor control, and cognitive functions