Muscular system

Question 1

Indicate three main sites for intramuscular injections

Answer 1

Deltoids
Gluteus maximus
Quadriceps

Question 1

Define hypertrophy

Answer 1

Increase in the diameter of muscle fibres. Results from forceful, repetitive muscular activity

Question 2

Define atrophy

Answer 2

Decrease in the diameter of muscle fibres - caused by disuse

Question 3

Name the three main types of muscle tissue

Answer 3

Skeletal
Smooth
Cardiac

Question 4

State 5 functions of skeletal muscle

Answer 4

Stabilises body position
Produces body movement and locomotion
Protection of internal organs
Support of internal organs
Generating heat

Question 5

Define agonist or prime mover

Answer 5

Contracts/shortens.bulges

Question 6

Define antagonist

Answer 6

Releases/lengthens

Question 7

Describe flexion

Answer 7

Decrease in the angle between articulating bonds

Question 8

Describe extension

Answer 8

Increase int eh angle between articulating joints

Question 9

Define abduction

Answer 9

Movement of the body away from the midline

Question 10

Define adduction

Answer 10

movement of the body towards the midline

Question 11

Define circumduction

Answer 11

Movement of a body part in a circle

Question 12

Define rotation

Answer 12

a bone revolves around its own longitudinal ones

Question 13

Define dorsiflexion

Answer 13

Bending of the foot at the ankle in an upward position

Question 14

Define plantar flexion

Answer 14

Bending of the foot at the ankle in a downward position

Question 15

Define supination

Answer 15

Movement of the forearm so the palm is facing upward

Question 16

Define pronation

Answer 16

Movement of the forearm so the palm is facing downward

Question 17

State the role of skeletal muscle in regulation of body temperature

Answer 17

Generating heat, conducting muscles produces heat, shivering increases heat production

Question 18

Name the type of muscle found in the heart wall

Answer 18

Cardiac muscle

Question 19

Name a muscle that is the agonist in extension at the hip

Answer 19

Gluteus maximus