muscle and nerves

Question 1

what is the name of the plexus that is responsible for the arm ad forearm muscle compartments ?

Answer 1

brachial plexus

Question 2

name of the plexus in the thigh and leg muscle compartments

Answer 2

lumbosacral plexus

Question 3

list the role of an agonist ,antagonist, fixator and synergist in terms of arm muscles & give an example

Answer 3

agonist; contracts e.g biceps
antagonist; relax e.g triceps
fixator; stabilise e.g deltoid
synergist ; support action of agonist e.g brachialis

Question 4

where do you loose the sensation at if you injure your ramus?

Answer 4

entire dermatome

Question 5

where do you loose the sensation at if you injure your nerve?

Answer 5

cutaneous field

Question 6

describe the categories of skeletal muscle; parallel , unipennate, bipennate , multipennate and aponeurosis

and describe the shape of a fusiform muscle

Answer 6

parallel muscle ; fascicles run parallel to the long axis

unipennate ;fascicles run at an angle

bipennate; fascicles coming from both sides

aponeurosis ; flat sheet of tendon

fusiform; spindle shaped

Question 7

state what thick and thin filamnents are made of?

Answer 7

thin- actin
thick- myosin

Question 8

what nerve supplies the gluteal muscle compartments (in the lower limb)

Answer 8

sciatic nerve

Question 9

state the movement for gluteal maximus,medius and minimus

Answer 9

gluteal maximus ; extension

gluteal medius and minimus ; abduction

Question 10

state the 3 leg muscles and where in the leg theyre located

Answer 10

dorsiflexors-anterior
plantarflexor-posterior
evertors;lateral

Question 11

how many muscles do evertors on the leg have?

Answer 11

they have 2 muscles

Question 12

what nerve supplies leg muscles

Answer 12

sciatic nerve

Question 13

state the posterior , anterior and medial muscle compartments of the thigh

Answer 13

posterior; hamstring

anterior;quadriceps

medial ;adductors

Question 14

what nerve supplies the hamstring quadriceps and adductor muscles of the thigh?

Answer 14

hamstring ;sciatic nerve
quadriceps ; femoral nerve
adductors ; obturator nerve

Question 15

name the 2 compartments of muscles

Answer 15

1. flexor compartment
2. extensor compartment

Question 16

what nerve supplies all extensor compartments in the UPPER limb?

Answer 16

radial nerve

Question 17

how many joints does the tricep and bicep cross over and name them

Answer 17

tricep- 2 joint ; elbow and shoulder joints

bicep -3 joints ; elbow , glenhumeral and radio-ulnar joints

Question 18

do tendons shorten?

Answer 18

no

Question 19

what nerve is the cutaneous field supplied by?

Answer 19

single peripheral nerve

Question 20

what rotation do radio-ulnar joints do?

Answer 20

supination of the forearm

Question 21

what nerve supplies all flexors muscles in the upper limb?

Answer 21

musculocutaneous nerve

Question 22

list the 3 flexor muscle compartments of the arm

Answer 22

-biceps brachii
-brachialis
-coracobrachialis

Question 23

list the joints the bicep intersects with

Answer 23

3 joints
glenohumeral, shoulder and radio-ulnar joint

Question 24

which bones are the tendons of bicep brachii attached to?

Answer 24

shoulder and elbow bones

Question 25

what is the action of bicep brachi at each joint?

Answer 25

shoulder- flexion of bicep
glenohumeral- flexion
radio-ulnar; supination of FOREARM

Question 26

what action does the triceps have on the joints it crosses

Answer 26

shoulder; extension & adduction of triceps
elbow ; extension of FOREARM

Question 27

describe movement of diaphragm muscles when you breathe in or out. describe in terms of contracts/relax and ascends or descends

Answer 27

breathe in causes diaphragm to contract and moving downwards

breathing out causes diaphragm to relax and moves upwards to normal position.

Question 27

what type of muscle is found in the diaphragm?

Answer 27

skeletal muscle

Question 28

what do the 3 oblique muscles form on both sides ?

Answer 28

aponeurosis

Question 29

what direction do the rectus abdominis travel in?

Answer 29

vertical direction

Question 30

what does the word ‘rectus’ mean

Answer 30

several straight muscles

Question 31

what shape is the deltoid?

Answer 31

triangular

Question 32

Gomphosis is united with what type of tissue

Answer 32

fibrous

Question 33

the lateral compartment of the leg performs which main action on the food?

Answer 33

eversion