Week 4

Question 1

What nerve is responsible for sensation of the nipple region?

Answer 1

T4

Question 2

What surrounds individual muscle fibres?

Answer 2

Endomysium

Question 3

What is a fasicle?

Answer 3

A collection and congregation of muscle fibres surrounded by Perimysium

Question 4

What surrounds and encapsulates fasicles?

Answer 4

Perimysium

Question 5

What is the outer layer of a muscle surrounded by?

Answer 5

Epimysium

Question 6

What is a Pennate Muscle?

Answer 6

When muscle fibres don’t run in parallel but rather converge in on a point (e.g. Pectoralis Major)

Question 7

What is a parallel muscle?

Answer 7

This is when muscle fibres run in parallel (e.g. the biceps)

Question 8

What separates compartments of muscles?

Answer 8

Intermuscular Septa

Question 9

WHat are the two structural divisions of the Nervous System?

Answer 9

Central Nervous System and Peripheral Nervous System

Question 10

What is the Somatic Nervous System in control of?

Answer 10

These are in control of voluntary movements

Question 11

What is the Autonomic Nervous System in control of?

Answer 11

Involuntary movements

Question 12

What are the 2 subsections of the Autonomic Nervous System?

Answer 12

The Sympathetic and Parasympathetic nervous system

Question 13

What surround individual neuron fibres?

Answer 13

Endoneurium

Question 14

What surrounds a fascicle of neuron fibres?

Answer 14

Perineurium

Question 15

What surrounds a collection of fascicles of nerve fibres?

Answer 15

Endoneurium

Question 16

How many pairs of spinal nerves do you have?

Answer 16

31

Question 17

What is the name given to the collection of nerves which innervate upper and lower extremities?

Answer 17

Plexuses

Question 18

What are the two kinds of Neuron fibres?

Answer 18

Afferent (Sensory) Neurons and Efferent (Motor) Neurons

Question 19

Where is the cell body found in nerves?

Answer 19

In the Dorsal Route Ganglion

Question 20

What kind of nerve fibres are found in dorsal and ventral ramus?

Answer 20

Both Efferent and Afferent Neurons

Question 21

What region of the body does the Dorsal Ramus innervate?

Answer 21

The back

Question 22

What region of the body do Ventral ramus innervate?

Answer 22

Anteriolateral regions

Question 23

What is a dermatome?

Answer 23

Is the area of skin innervated by a single spinal root (spinal route is where peripheral nervous system joins central nervous system)

Question 24

What is a Myotome?

Answer 24

Is a group of muscle innervated by a sing spinal root

Question 25

What direction do the external obliques run in?

Answer 25

Fibres run downwards like your putting your hands in your pockets

Question 26

What direction do internal obliques run in?

Answer 26

Fibres run upwards at 45 degree angle towards the sternum direction

Question 27

What direction do the tranverse abdominis run in?

Answer 27

Fibres run horizontally along the coronal plane

Question 28

What nerve supplies the extensor muscles in the arm and forearm?

Answer 28

Radial Nerve

Question 29

What nerve supplies the extensors in the forearm and arm?

Answer 29

Musculocutaneous Nerve

Question 30

What does an agonist muscle do?

Answer 30

They are the prime mover which contract the muscle

Question 31

What does an antagonistic muscle do?

Answer 31

They relax and lengthen the muscle

Question 32

What does a fixator muscle do?

Answer 32

They provide stability around joints and other muscles

Question 33

What nerve innervates the posterior portion of the thigh?

Answer 33

Sciatic Nerve

Question 34

What are the three muscle compartments of the thigh?

Answer 34

Anterior, Posterior and Medial

Question 35

What do the intrinsic muscles of the hand allow for?

Answer 35

Precision and fine motor movements

Question 36

What do the intrinsic muscles of the foot allow for?

Answer 36

Supporting while walking and maintaining the arches of the foot

Question 37

Where do spinal nerves exit the vertebral column?

Answer 37

Through Intervertebral Foramen

Question 38

What is the somatic reflex arch?

Answer 38

This is the Afferent neuron synapsing onto an Interneuron and then synapsing onto an Efferent neuron

Question 39

What would happen if we had damage to the dorsal horn?

Answer 39

We would lose sensation in the area that the spinal root innervates

Question 40

What would happen if there was damage to the ventral horn?

Answer 40

We would lose motor function in the area that the spinal root innervates?

Question 41

What would happen if we damaged a ramus?

Answer 41

We would lose both Motor Function (Efferent) and Sensation (Afferent) in the area it innervates