BONES
Plate-like, with broad surface
FLAT BONES
origin: zygomatic bone
insertion: orbicularis oris
action: draws angle of mouth laterally and upward
consist of thin actin filaments and thick myosin filaments
MYOFIBRILS
round head in cup-shaped cavity
articulates with with occipital condyles on the occipital bone of the skull
ATLAS (C1)
cube-like; include sesamoid bones, which are embedded in tendons
SHORT BONES
origin: occipital bone; insertion: lateral third of the clavicle; action: rotation retraction, elevation, and depression of scapula
TRAPEZIUS
associated with troponin and tropomyosin, composed of actin protein
THIN FILAMENTS
also called trochoid joint, rotation only, C1 & C2
PIVOT JOINT
shin bone
TIBIA
Variety of shapes most are connected to several other bones
IRREGULAR BONES
origin: anterior superior iliac spine; insertion: medial surface of shaft of the tibia; action: flexes abducts and laterally rotates thigh at hip joint
extends into the sarcoplasm, triad
TRANSVERSE ("T") TUBULE
back and forth and twisting, also called gliding joint
PLANE JOINT
part of pectoral girdle; supraspinous fossa, infraspinous fossa, acromion process
long and narrow, have expanded ends
LONG BONES
Origin: ribs 3-5; insertion: groove of the humerus; action: medial rotation, adduction, extension and respiration
PECTORALIS MINOR
Tube network that contains Ca+2
SARCOPLASMIC RETICULUM
also called seller joint; found in carpal and metacarpal of thumb
SADDLE JOINT
the ribs, thoracic vertebrae, sternum makes up this part of body
THORACIC CAGE
covers epiphysis and surface of joint
ARTICULAR CARTILAGE
TRICEPS BRACHII
contains these structures:
I Band (thin filaments) Z Line
A band (thick and thin) M line
H zone (thick filaments)
SARCOMERES
joints between metacarpals and phalanges, biaxial movement, no rotation
CONDYLAR JOINT
these are included with this part of the body
manubrium, body, xiphoid process
STERNUM