Muscles: Introduction

Question 1

Which of the following is the muscle cell?
A. Fascicle
B. Muscle fibre
C. Sarcolemma
D. Myofibril
E. Sarcoplasm

Answer 1

B Muscle fibre

Question 2

What is the Fascicle?

Answer 2

A bundle of Muscle fibres

Question 3

What is the sarcolemma

Answer 3

It is the equivalent of a cell body in a muscle fibre

Question 4

What is the myofibril

Answer 4

Myofibril is a contractile structure of a muscle cell

Question 5

What is the sarcoplasm

Answer 5

Sarcoplasm is the equivalent of cytoplasm

Question 6

Which muscle cells are multinucleate?
A. Skeletal muscle cells
B. Smooth muscle cells
C. Cardiac muscle cells
D. Both smooth and cardiac muscle cells
E. Skeletal, smooth and cardiac cells

Answer 6

Skeletal muscle
Note:
- Cardiac Muscle: Single or Bi nucleated
- Smooth Muscle: Single nucleated

Question 7

Which muscle tissue has a striated appearance?
A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. Both smooth and cardiac muscle
E. Both skeletal and cardiac muscle

Answer 7

E skeletal and cardiac

Question 8

Which part of the sarcomere has myosin only?
A. I band
B. H zone
C. A band
D. M line
E. None of these options has myosin only

Answer 8

B. H zone

Question 9

What does the I band have?

Answer 9

Actin only

Question 10

What does the H zone have?

Answer 10

Myosin only

Question 11

What does the A band have?

Answer 11

Myosin and Actin

Question 12

What is the M line

Answer 12

It is the line that joins the Myosin together in the middle. it is located at the centre of the H zone

Question 13

Which of the following is NOTa function of skeletal muscle?
A. Heat generation
B. Movement of blood and lymph
C. Movement of the skeleton and joints
D. Maintains upright posture
E. Movement of food through the digestive tract

Answer 13

E