-
Raises Eyebrows
Occipitofrontalis
-
-
depresses mandible
Platysma
-
muscles that move eye in named direction
Superior, inferior, lateral and medial rectus
-
depression abduction roatation of the eye
Superior oblique
-
elevation abduction, rotatiof of eye
Inferior oblique
-
Chewing, elevates mandible
Masseter
-
elevates, retracts madible
Temporalis
-
elevates tongue
styloglossus
-
lateral movement of mandible
medial lateral pterygoid
-
elevates hyoid, depresses mandible
Digastric- suprahyoid
-
depresses hyoid
Sternohyoid- infrahyoid
-
flexes cervical region of certebral column
Sternocleidomastoid
-
has evely spaced fascicles attaching to a tendon that is about the same width as the muscle
Parallel (sartorious)
-
a muscle that is broad and uniformly taper to a single tendon, triangular muscles usually have a convergent fascicle arrangement
Convergent pectoralis major
-
has fibers and fascicles that attach to the tendon at an angle in such a way that the muscle resembles a feather
pennate
-
ex of unipennate muscle
Flexor pollicis longus of the forearm
-
bi pennate ex
Rectus femoris of the thigh
-
ex of multipennat
deltoid
-
what muscles tend to be thicker in their belly
Fusiform
-
attachment point moveable structure
Insertion
-
almost all muscles cross at least _____ joint
One
-
Longer fibers increas
ROM (Range of Motion)
-
increase thickness means
Increased force
-
synergist that immobilizes the origin
Fixator
-
most common type of lever
3rd class levers
-
Depresses tongue
Hyoglossus
-
muscles that assist with smiling
zygomaticus major and minor
-
flexes vertebral column
also used in urination defacation, exhalation, labor
Rectus abdominus
-
pulls the lip up
Levator labii superioris
-
widening and close mouth grinning use the
Risorius
-
extend the head and neck
Splenius capitus and splenius cervicus
-
3 groups of muscles in the back
spinalis, lingissiju, iliocostalis
-
the 3 muscles within the groups
cervicus, thoracis, lumborum
-
elevates the rib cage, assisting inspiration
External intercostal muscles
-
depresses the ribs
assisting expiration
Internal intercostal muscles
-
pulls the 12th rib inferiorly (forced exhale)
Quadratus lumborum
-
elevates scapula
Levator scapulae
-
upward rotation of scapula, adduction of scapula
trapezius
-
abducts scapula, rotates scapula downward
Pectoralis minor
-
abducts scapula, rotates scapula upward
serratus anterior
-
adducts, medially rotates arm at shoulder
Pectoralis major
-
extends, adducts medially rotates arm at shoulder (broadest superficial muscle of the back)
draws arm posteriorly
latissimus dorsi
-
abducts, flexes, medial rotation of arm at shoulder
deltoid
-
flexes forearm at elbow
Biceps brachii
-
extends forearm at elbow
triceps brachii
-
flexes forearm at elbow
Brachioradialis
-
pronates forearm at radioulnar joint
Pronator teres
-
flexes hand at wrist
flexor carpi radialis, flexor carpi ulnaris
-
flex thigh at hip
Psoas major
-
adducts thigh at hip
gracilis
-
flexes leg at knee
sartorius
-
extend leg at knee
quadriceps femoris
-
adduct or flexes thigh at hip
Adductor longus, magnus, brevis
-
extends thigh at hip
Gluteus maximus
-
all extend thigh at hip and flex leg at knee
hamstrings
-
name the hamstrings
all used in walking
- bicep femoris
- semitendonosis
- smimembranosis
-
dorsiflexes foot at ankle
tibialis anterior
-
plantar flexes the foot at ankle
soleus, fibularis longus
-
extend the foot at the ankle
Gastrocnemius
-
flexes toes
flexor digitorum brevis
-
abductor digiti minimi
abduct, flexes little toe
-
abducts, flexes big toe
Abductor hallucis
-
flexes big toe
flexor hallucis brevis
-
-
-
-
related to fingers/toes
digitorum/digiti
-
-
-
-
-
-
pulls away from midline
abductor
-
pulls toward the midline
Adductor
-
-
holds erect or straight
Erector
-
increases the angle between bones
Extensor
-
decreases the angle between bones
flexor
-
raises a body part
levator
-
muscle is at an angle
oblique
-
muscle is circular
orbicular
-
muscle is straight
rectus
-
muscle is transvers
transversus
-
toward the front
anterior
-
toward the outside
External
-
-
between the ribs
Intercostal
-
toward the inside
internal
-
towrad the back
posterior
-
-
nearer the surface
Superficialis
-
-
-
-
-
-
-
-
triangular shaped
deltoid
-
-
-
-
shaped like a rectangle
quadratus
-
shaped like a rhombus
Rhomboid
-
serrated or jagged
serratus
-
shaped like a trapezoid
trapezius
|
|