Muscles
A. Head and neck muscles
...
B. muscles that move the shoulder and arm
...
Muscles that move the hip and leg
...
Muscles that move the trunk
...
what is the iliotibial tract?
a band of collagen fibers that extends along the lateral surface of the thigh and inserts on tibia
the major function of the deltoid muscle is
abduction
the long head of the triceps brachii also
adducts and extends the shoulder
what is the action of these muscles at the hip and knee
adducts hip and flexes the knee
how can it be that this one muscle extends and flexes the shoulder
anterior part: shoulder flexion posterior part:shoulder extension superior part:shoulder abduction
sudden paralysis of fascial muscles on one side of the face is called
bells palsy
breathing muscle made up of skeletal muscle
diaphragm
collective name for three major muscle group of the back
errector spinae
triceps brachii
extends the elbow
the latissimus dorsi
extends,adducts and medial rotates the shoulder
fascial muscles are innervated by the
facial nerve
which nerve innervates these muscles
femoral nerve
the iliacus and psoas major work synergistically to
flex the hip
the brachialis (powerful) muscle _____ the elbow
flexes
the pectoralis major muscle ____
flexes, adducts and medial rotates the shoulder
the major function of the biceps bracii muscle is elbow
flexion
origin:
generally less-movable bony attachment of the muscle
insertion:
generally the more move able bony attachment of the muscle
which is the prime mover for hip extension
gluteus maximus
which one laterally rotates the hip
gluteus maximus
which one abducts the hip
gluteus medius
which of these muscles causes movement at both the hip and knee
gracilis
contraction of the trapezius muscle would
hyperextend the neck
contraction of both sternocleidomastoid muscles would cause neck
hyperextension
rotator cuff:
infraspinatus,supraspinatus,teres minor,subscapularis
what would happen if the left sternocleidomastoid muscle was contracted but not the right?
it would go on the opposite side
why is this muscle called quadriceps
made up of four
scalene muscles can cause
neck flexion ( if the head is held still it can lift the rib cage and assist in breathing)
do gluteus maximus and medius have the same functions
no
facial muscles:
orbicularis oris,orbicularis oculi,buccinator,zygomatic muscle
the brachialis is the ____for elbow flexion
prime mover
the iliopsoas is the ___
prime mover for hip flexion
which of these muscles would help flex the spinal column?
rectus abdominis
abdominals:
rectus abdominis,external oblique,internal oblique,transverse abdominis
which quadriceps muscle spans two joints
rectus femoralis
which of these muscles causes hip flexion
rectus femoris
quadriceps muscle: (R,V,V,V)
rectus femoris,vastus lateralis,vastus medialis,vastus intermedius
other thigh muscles:
sartorius, gracillis, tensor fasciae latae
facial muscles insert into the
skin
which muscle of the rotator cuff abducts the shoulder?
supraspinatus
which muscle of the rotator cuff abducts medially rotates the shoulder?
teres major and latissimus dorsi
which muscle laterally rotate the shoulder?
teres minor and infraspinatus
regarding shoulder flexion the pectoralis major is
the prime mover
how can it be that biceps brachii muscle produces movement at both the shoulder and elbow?
two origins
which muscle causes knee extension
vastus lateralis and vastus medialis
How does the muscle attach to bone?
via tendons into periosteum
how many fascial nerves are there
2 (left and right)
