Tissue type responsible for body movement?
Muscle
Versions of actin and myosin filaments that bring about movement or contraction?
Myofilaments
What are the 3 types of muscle tissue?
Skeletal
Cardiac
Smooth
Skeletal muscle cells, also called __________, are long cylindrical cells.
Muscle fibers
Muscle fibers
__________ muscle is found only in the walls of the heart.
Cardiac
__________ muscle is named so because it has no visible striations
Smooth
True or False
Skeletal muscle is involuntary, cardiac and smooth muscles are voluntary.
False
Skeletal in voluntary, the other 2 are involuntary.
What tissue regulates and controls body function?
Nervous
What are the 2 major cell types of nervous tissue?
Neurons and supporting cells
True or False
Supporting cells conduct nerve impulses, and Neurons are non-conducting cells
False
Neurons conduct impulses. Supporting cells support, insulate, and protect neurons.
Neurons respond to stimuli via processes called __________.
Dendrites
Neurons transmit electrical impulses via processes called __________.
axons
What are the 3 types of covering and lining membranes?
Cutaneous
Mucous
Serous
__________ membrane is your skin.
Cutaneous
__________ membranes line all body cavities that open to the outside of the body.
Mucous
In mucous membranes, the epithelial sheet lies directly over a layer of loose connective tissue called the __________, but in some, the __________ rests on a 3rd layer of smooth muscle cells.
lamina proper
__________ membranes are the moist membranes found in closed ventral body cavities.
Serous
__________ fluid lubricates the facing surfaces of the parietal and visceral cavities so the organs can slide across easily.
serous
What are the 3 types of serous membranes?
Pleurae
Pericardium
Peritoneum
Match.
1. Pleurae
2. Pericardium
3. Peritoneum
A. line the thoracic wall and cover lungs
B. Encloses the abdominopelvic viscera
C. Encloses the heart
1. A
2. C
3. B
Name some body-defenses that help keep the body safe from the external environment.
Skin, mucous, cilia, stomach acid.
The __________ response is a relatively nonspecific reaction that happens quickly when there is an injury.
inflammatory
The _________ response is very specific, but takes longer to spring into action.
immune
What are the steps of tissue repair?
Inflammation starts
Organization restores the blood supply
Regeneration and Fibrosis
True or False
Regeneration replaces destroyed tissue with the same kind of tissue.
True
True or False
Fibrosis is the formation of a scar.
True
Which of these options decide whether Fibrosis or Regeneration needs to occur:
1. The type of tissue damage
2. The severity of the injury
3. The age of the organism
Both 1 and 2.
_________ is the first phase of tissue repair.
Organization
During organization, the blood clot is replaced by __________ tissue.
granulation
True or False
Cardiac muscles and the nervous tissue in the brain and spinal cord regenerate extremely well and quickly.
False
They have virtually no functional regenerative capacity. They are routinely replaced by scar tissue.
Scar tissue is strong, but lacks flexibility like the original tissue. Why is this?
It is composed mostly of collagen fibers.
How could the formation of a scar on the bladder, heart, and other muscular organs produce a homeostatic imbalance?
The scar reduces the internal volume, and could hinder or block substances from moving through.
1 of the first events of embryonic developement is the formation of the 3 _______________.
primary germ layers
What are the 3 primary germ layers?
ectoderm, mesoderm, endoderm.
Relatively undifferentiated cells that divide as necessary to produce new cells are the ________ cells.
stem