Practical class 2 muscles and nerves Flashcards Preview

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Flashcards in Practical class 2 muscles and nerves Deck (48)
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1

What are muscles called if they only attach to the trunnk

Axial muscles

2

What are muscles called if they attach from the trunk to the limb muscles?

Appendicular muscles

3

What kind of tissue are tendons?

Dense regular connective tissue

4

What is the name given to the proximal/superior attachment of a muscle?

Origin

5

What is the name given to the inferior/distal attachment of the muscle?

Insertion (usually the moving end of the muscle)

6

What is the name given to the type of tendons of the abdominal oblique muscles?

Aponeurosis - flat thin and broad

7

Which bicep muscle crosses three joints?

Biceps Brachii
Shoulder and elbow and Radioulna joint

8

What are muscles called that span the medial sagital plane, from one side of the body to the other?

Diaphragm - tendon situated in the centre of the muscle

9

What is the shape of the deltoid?

Triangular

10

What is a pair of muscles combining in an antagonistic way to carry out a particular action on a joint called?

An antagonistic pair

11

What is a synergist?

Muscle that performs the same set of movement as the agonist. Assists the movement of the joint. Stabilize movements and ensure movement falls within a safe range of motion.

12

What is a fixator?

Stabilises the joint and prevents dislocation.

13

What compartmentalises muscle?

Deep fascial intermuscular septa

14

What are the characteristics of each compartment?

Common nerves supplying all the muscles in the compartment, common actions in all the muscles of the compartment.

15

What supplies the muscles of the upper limb?

The brachial plexus - C5 - T1

16

What supplies the muscles of the lower limbs?

The lumbosacral plexus - L1 - S4

17

How many layers of oblique muscles exist on either side of the rectus abdominis?

3

18

What direction do the fibres face in the three layers of oblique muscles

90 degrees to each other

19

What does the word rectus mean?

Straight

20

What is the function of the aponeurosis?

Takes the function of tendons in sheet like muscles.

21

Why are the anterior muscle of the anterior abdominal wall flat?

Allows organ function
Keeps viscera in the abdominal cavity
Keeps the viscera in the anatomical position against the effects of gravity

22

What does the word brevis mean?

Short

23

Define multipennate

When fibres converge like barbs on feathers to several central tendons.

24

What does the term teres mean?

Rounded

25

Where do the muscle fibres of the diaphragm attach?

A 3 leafed central tendon and peripherally to bony structures

26

What are the features of skeletal muscle?

Striations
Multinucleate
Peripheral nucleus
Oval nucleus
Z disks

27

What are the features of smooth muscle?

Elongated nucleus
No Z disks
Single central nucleus

28

What are the features of cardiac muscle?

Branched
Shorter fibres
Intercalated disks
Z disks
Striated
Oval central nucleus

29

Where is the mixed spinal nerve formed?

In the intervertebral foramen

30

What does the ventral ramus supply?

Supplies the skin muscles and bone of the anterolateral sides of the trunk as well as the entire upper and lower limbs