Chapter 1
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
movement of a fibrous joint
no movement
example of a fibrous joint
suture
movement of a cartilaginous joint
limited movement
example of a cartilaginous joint
intervertebral
movement of a synovial joint
free movement
example of a synovial joint
shoulder, knee
example of a uniaxial joint
elbow
example of a biaxial joint
wrist
example of a multiracial joint
shoulder
what is epimysium
surrounds entire muscle
what is perimysium
surrounds fascicle (fasciclus)
what is endomysium
surrounds individual muscle fibers/cells
what is a motor unit
motor neuron+ muscle fibers it innervates
what is a sarcolemma
cell membrane
what is a sarcoplasm
cytoplasm
what is the function of a sarcoplasmic reticulum
Ca storage
___ are thick filaments
myosin
___ are thin filaments
actin
function of Z lines
move closer together during contraction
function of I bands and the H zone
shortens during contraction
when does the muscle have the most cross bridges
at rest
5 stages of the sliding-filament theory
• resting • situation-contraction coupling • contraction • recharge • relaxation
what happens during the resting phase
lower Ca-> decrease interaction between actin and myosin
what happens during the excitation-contraction phase
action potential-> Ca release from SR; Ca binds to troponin; tropomyosin shifts position and reveals binding sites