Muscle names and groups

Question 1

What muscle runs anterior to the tibia

Answer 1

The tibialis anterior

Question 2

What muscle group is anterior to the hip

Answer 2

iliopsoas

Question 3

what muscles make up the iliopsoas

Answer 3

The psoas major and the iliacus

Question 4

Where does the iliacus connect?

Answer 4

the iliac crest and the femur

Question 5

Where des the psoas major connect?

Answer 5

To the vertebrae and the femur

Question 6

Where does the Tibilais anterior connect

Answer 6

connects to the medial part of foot, and the tibial tuberoscity

Question 7

what does the concentric action of the tibialis anterior cause

Answer 7

dorsiflexion

Question 8

what does the concentric action of the iliopsoas cause

Answer 8

hip flexion

Question 9

generally, what movement will an concentric anterior muscle action cause

Answer 9

flexion

Question 10

generally, what movement will a concentric posterior muscle action cause

Answer 10

extension

Question 11

generally, what movement will a concentric lateral muscle action cause

Answer 11

abduction

Question 12

generally, what movement will a concentric medial muscle action cause

Answer 12

adduction

Question 13

what exceptions to the general postional movement rules are there

Answer 13

the knee joint, anterior causes extension and posterior causes flexion

Question 14

Where does the biceps brachii connect

Answer 14

anteriorly to the shoulder, and connects to the radial tuberosity.

Question 15

What does concentric action of the biceps brachii cause

Answer 15

flexion at elbow, flexion at the shoulder. Supination at radioulna joint.

Question 16

Where does the triceps brachii connect to

Answer 16

The triceps brachii posteriorly connects to the shoulder and the elbow joint at the olecranon

Question 17

what action does concentric movement of triceps brachii cause and where

Answer 17

extension at the elbow and shoulder

Question 18

Where does the deltoid connect

Answer 18

laterally to the humerus, posteriorly and anteriorly to the shoulder joint

Question 19

what shape is the deltoid kinda

Answer 19

like a triangle as its posterior-anterior and lateral to shoulder joint

Question 20

What movements can concentric activity of the deltoid cause

Answer 20

abduction of shoulder, lateral head
Flexion at shoulder, anterior head
Extension of shoulder, posterior head

Question 21

Where does the gluteus maximus connect

Answer 21

Posteriorly to the hip joint, posterior to the sacrum and coccyx, and to femur

Question 22

What does concentric action of the gluteus maximus cause

Answer 22

hip extension

Question 23

What four muscles make the Quadriceps femoris

Answer 23

Rectus femoris, vasti lateralis, vasti medialis and the vasti intermedius

Question 24

What’s special about the Rectus femoris

Answer 24

it crosses the hip joint so it also helps hip flexion, only muscle of these to do that

Question 25

Whats more superficial the rectus femoris or the vasti muscles

Answer 25

the rectus femoris is more superfiial

Question 26

what movement does concentric action of the quadriceps femoris create

Answer 26

knee extension

Question 27

where do all muscles of the quadriceps femoris connect

Answer 27

the patella which connects to the tibial tuberosity

Question 28

where do vasti muscles connect

Answer 28

to the femur anteriorly and to the and the patella at the tibial tuberosity

Question 29

What muscles make up the hamstrings

Answer 29

The semitendinosus, semimembranosus, biceps femoris

Question 30

Where do the hamstring muscles connect

Answer 30

. Connect posteriorly to the hip. All 3 attach to the hip bone posteriorly, so run posterior to knee joint.

Question 31

The hamstrings make the knee what type of joint and why

Answer 31

a condylar, causing the biceps femoris and semis to connect to opposite sides of knee joint.

Question 32

what does the concentric action of the hamstring muscle group cause

Answer 32

hip extension and knee flexion, also rotation of knee when flexed

Question 33

Where does the tibialis anterior connect

Answer 33

connects anteriorly to the tibial tuberosity and the medial side of the foot

Question 34

What does the contraction action of the tibialis anterior cause

Answer 34

dorsiflexion,

Question 35

what other movement does the tibialis anterior cause

Answer 35

inversion of the foot

Question 36

What muscle group has the gastrocnemius and the soleus muscles

Answer 36

the triceps surae

Question 37

what in the triceps surae is more deep

Answer 37

the soleus

Question 38

Where does the gastrocnemius connect

Answer 38

connects posteriorly to the femur and at the calcaneus tendon, achilleas

Question 39

What does concentric action of the gastrocnemius cause and why

Answer 39

knee flexion as it crosses posteriorly to the knee, it connects to femur, and plantarflexion

Question 40

what movement does contraction of soleus cause

Answer 40

plantarflexion

Question 41

what does first class lever do

Answer 41

stabilise joint position

Question 42

what does second class lever do

Answer 42

effective at overcoming loads
think wheelbarrow

Question 43

what does third class lever do

Answer 43

= large range of movement and speed
think bicep

Question 44

A fibre can contract upto 50% of its resting length. The larger the range of motion the larger the what?

Answer 44

larger the contraction, the larger the muscle fibre, the more ROM the stronger the contraction

Question 45

Tension is proportional to?

Answer 45

the Cross sectional area of the muscle

Question 46

More fibres= what

Answer 46

more CSA= more tension in the muscle.

Question 47

the form of the muscle depends on what

Answer 47

Length of muscle fibres, Number of muscle fibres, Arrangement of muscle fibres.

Question 48

pennate muscle arrangement gives more what in the muscle? but this results in less what

Answer 48

more force due to larger CSA, but the muscle can only contract half the resting length of its shortest fibre so the contraction of the muscle is decreased. So pennate doesn’t give the best ROM.

Question 49

describe concentric muscle action

Answer 49

Muscle is active and develops tension.
In this action the tension is greater than the load thus bones can be pulled closer together as muscles contract, which changes joint position.

Question 50

describe eccentric muscle action

Answer 50

muscle is active and tension develops
But tension Is lesser than the load, in this case, the muscle will elongate, maybe even be pulled in the opposite direction by another muscle or gravity. Usually elongates the muscle. Changes joint position

Question 51

describe isometirc muscles action

Answer 51

Active and tension develops
Tension is the same as the load, thus muscle length does not change, so no change in joint position. Think holding your forearm out straight and how muscle doesn’t move doing this but is still active in resisting gravity.

Question 52

what type of rotation does biceps femoris allow

Answer 52

lateral rotation when knee if flexed

Question 53

what type of rotation do the semimembranosus and semitendinosus allow

Answer 53

medial rotation when knee if flexed