Muscles and Movement

Question 1

Why do muscles appear striated?

Answer 1

Overlapping of actin and myosin

Question 2

Skeletal muscle fibres are ___ than smooth muscle fibres

Answer 2

longer

Question 3

Name 5 types of skeletal muscle

Answer 3

Pennate, Circular, Quadrate, Fusiform, Flat (with aponeurosis)

Question 4

Example of a circular muscle?

Answer 4

Orbicularis Oris

Question 5

Example of a pennate muscle?

Answer 5

Deltoid

Question 6

Example of a fusiform muscle?

Answer 6

Bicep brachii

Question 7

Example of a flat muscle?

Answer 7

External oblique

Question 8

Example of a quadrate muscle?

Answer 8

Rectus Abdominis

Question 9

What attaches muscles to bone?

Answer 9

Tendons

Question 10

What is an aponeurosis?

Answer 10

A flattened tendon

Question 11

What are the attachments to bone known as?

Answer 11

The origins and insertions

Question 12

What is a ‘reflex’?

Answer 12

Rapid, predictable, involuntary reaction to “danger”- protective

Question 13

What does ‘muscle atrophy’ mean?

Answer 13

Wasting of the muscles- myocytes become smaller, reducing the muscle bulk)