Lecture 3 - Quiz 1

Question 1

List 3 functions of muscular system?

Answer 1

Movement - physical, Heat production, Storage of substances, moving of substances eg heart, digestive system, posture

Question 2

Name 2 types of muscle that are striated?

Answer 2

Heart and skeletal

Question 3

What does the endomysium surround?

Answer 3

Muscle fibres, individual muscle cells

Question 4

Name the neurotransmitter at the neuromuscular junction?

Answer 4

Acetylcholine (known as ACH)

Question 5

Complete the sentence ——-and ———- are needed for muscle contraction?

Answer 5

Calcium and ATP

Question 6

Name the 2 myofilaments?

Answer 6

Actin & myosin

Question 7

Explain what is meant by muscle hypertrophy and atrophy?

Answer 7

Enlargement of muscle size and waste / loss of muscle size

Question 8

Compare aerobic and anaerobic respirtation?

Answer 8

In the prescence of Os, produces 36 net molecules of ATP, in the absence of O2 and produces 2 molecules of ATP

Question 9

Explain why some muscles appear red?

Answer 9

Due to large quantity of myoglobin

Question 10

Indicate the type of cell respiration that slow oxidative muscle fibres use?

Answer 10

Aerobic