week 3 anatomy lab, muscles

structure

external intercostal m.

structure

internal intercostal m.

structure

external oblique m.

structure

internal oblique muscle

structure

transverse abdominis m.

structure

linea alba m.

structure

rectus abdominis m.

division break into 3 pieces to form the “six pack”

tendinous intersections of the rectus abdominis m.

structure “thin flaps”

rectus sheath of the rectus abdominis m.

structure

pectoralis major m.

structure

pectoralis minor m.

structure

serratus anterior m.

structure

trapezius m.

feature (lower)

descending part of the trapezius m.

feature (side)

transverse part of the trapezius m.

feature (upper)

ascending part of the trapezius m.

structure

latissimus dorsi m.

structure

rhomboid major m.

structure

rhomboid minor m.

structure

levitator scapulae m.

structure

deltoid m.

structure

teres major m.

structure

rotator cuff m.

all 4 rotator cuff muscles

supraspinatus m., infraspinatus m., teres minor m., subscapularis m.

structure

supraspinatus m.

structure

infraspinatus m.

structure

Teres minor m.

structure

subscapularis m.

collective structure

erector spinae m.

structure

spinalis m.

structure

longissimus m.

structure

iliocostalis m.

structure

splenius capitis m.

structure

splenius cervicis m.

structure

platysma m.

structure

sternocleidomastoid m.

structure

digastric m.

portions

anterior and posterior bellies of the digastric m.

structure

Mylohyoid m.

structure

sternohyoid m.

structure

sternothyroid m.

structure

thyrohyoid m.

collective structure

Omohyoid m.

portions (upper and lower)

superior and inferior bellies of the omohyoid m.

structure

Occipitofrontalis m.

portion

frontal belly of the Occipitofrontalis m.

structure closes the eyelids

orbicularis oculi m.

structure

Orbicularis oris m.

Structure Compresses your cheeks so your food stays in your mouth

Buccinator m.

structure

zygomaticus major m.

structure

masseter m.

structure

temporalis m.

structure

Coracobrachialis m.

collective structure the “guns” of the arm

Biceps brachii m.

structure

long head of the biceps brachii m.

structure

short head of the biceps brachii m.

structure

Brachialis m.

collective structure

Triceps brachii m.

structure

long head of the triceps brachii m.

structure

lateral head of the triceps brachii m.

Not really medial, a better name is “deep head”

medial head of the triceps brachii m.

structure

pronator teres m.

structure

flexor carpi radialis m.

structure, about 20% of folks don’t have one

palmaris longus m.

structure

flexor carpi ulnaris m.

structure

flexor digitorum profundus m.

structure

flexor pollicis longus m.

structure

pronator quadratus m.

structure

brachioradialis m.

structure

extensor carpi radialis longus m.

structure

extensor carpi radialis brevis m.

structure

extensor digitorum m.

structure, wraps around the upper radius, find it next to its antagonist= the pronator teres

supinator m.

structure

abductor pollicis longus m.

structure

extensor pollicis brevis m.

structure

extensor pollicis longus m.

structure

diaphragm m.

portion (front)

sternocostal part of the diaphragm m.

portion (back)

lumbar part of the diaphragm m.

feature (two lil bottom legs)

right and left crura of the diaphragm m.

structure

central tendon of the diaphragm m.

opening (bottom hole)

aortic hiatus of the diaphragm m.

opening (right hole)

esophageal hiatus of the diaphragm m.

opening (top hole)

Caval opening of the diaphragm m.

structure 40% of people don’t have one

Psoas major m.

structure

iliacus m.

structure The psoas major and iliacus muscles fuse in the upper thigh.

iliopsoas m.

structure

quadratus lumborum m.

structure, forms the floor of the pelvic cavity, supports the pelvic organs BQ only

pelvic diaphragm m.

structure

external anal sphincter m.

structure largest single muscle in the body

gluteus maximus m.

structure

gluteus medius m.

structure

gluteus minimus m.

structure

tensor fasciae latae m.

structure

iliotibial tract (no m.)

structure

piriformis m.

structure

quadratus femoris m.

structure longest muscle in the body

sartorius m.

collective structure

quadriceps femoris m.

structure

Rectus femoris m.