Compendium 2 (Tissues)

Question 1

What are the 3 types of muscle tissue?

Answer 1

1. Skeletal
2. Cardiac
3. Smooth

Question 2

What is the function of muscle tissue?

Answer 2

Responsible for tension and body movements.

Question 3

What are 4 functions of skeletal muscle?

Answer 3

1. Heat regulation
2. Metabolism
3. Posture
4. Breathing

Question 4

What is skeletal muscle?

Answer 4

Muscles attached to the bones of the skeleton.

Question 5

What are muscle cells called?

Answer 5

Muscle fibres or myofibres

Question 6

Which of the 3 types of muscle is involved in voluntary movement?

Answer 6

Skeletal muscle - can also have involuntary movements like twitches

Question 7

Where is cardiac muscle found?

Answer 7

Only in the walls of the heart.

Question 8

What is the name for cardiac muscle cells?

Answer 8

Cardiomyocytes

Question 9

What are the 2 functions of the cardiac muscle?

Answer 9

1. Generates pressure to push blood through the vessels.
2. Change the rate of the force to meet metabolic needs of the body.

Question 10

What are the 3 cellular layers for the wall of the heart?

Answer 10

1. Epicardium (visceral pericardium)
2. Myocardium
3. Endocarcium

Question 11

What are the 2 functions of smooth muscle?

Answer 11

1. regulates the size of the organ/tube
2. moves contents of organ along.

Question 12

Where is smooth muscle mostly found? Provide 3 examples.

Answer 12

Mainly found in the walls of hollow organs and tubes.

1. Stomach 2. Bladder 3. Intestines.

Question 13

Which 2 muscle types have striations?

Answer 13

Cardiac and Skeletal

Question 14

Which muscle type has lots of mitochondria in it?

Answer 14

Cardiac muscle

Question 15

What type of nuclei does skeletal muscle have?

Answer 15

Peripheral nuclei (on the edges of each tube)

Question 16

What type of nuclei does cardiac muscle have?

Answer 16

Central nuclei

Question 17

What type of nuclei does smooth muscle have?

Answer 17

Single nucleus per muscle cell

Question 18

What are the 3 parts of the nervous system?

Answer 18

1. Brain
2. Spinal cord
3. Nerves

Question 19

What are the 2 important cell types in nervous tissue?

Answer 19

1. Neurons (nerve cells)
2. Neuroglia (supporting cells)

Question 20

What is the function of neurons?

Answer 20

Produce and conduct action potentials

Question 21

What is the function of neuroglia?

Answer 21

They nourish, protect, and insulate neurons.

Question 22

What are the 3 parts of neurons?

Answer 22

1. Soma
2. Dendrites
3. Axon

Question 23

What do the axons in a neuron do?

Answer 23

Conduct and/or transmit information.

Question 24

What do the dendrites in a neuron do?

Answer 24

Receive information.

Question 25

What is a soma?

Answer 25

It is the cell body of a neuron which contains the cells nucleus.