Structure
The covering separating fasicle from fasicle.
What is perimysium?
The neurotransmitter that plays a role in skeletal muscle contraction.
What is acetylcholine?
The molecule needed to put myosin heads in a cocked position, releasing from the cross bridge
What is ATP?
Superficial sheet-like neck muscle that helps you to frown
What is athe platysma?
The muscle that lifts your eyebrows.
What is the frontalis?
The basic functional unit of a muscle.
What is a sarcomere?
The name of the electrical signal the travels down the neuron
What is the action potential?
The space through which acetylcholine must travel to bind to the sarcolemma.
What is the synaptic cleft?
What is tibialis anterior?
Superficial calf muscle
What is the gastrocnemius?
The dark bands in skeletal muscle histology
What is myosin?
The area where a neuron meets with the sarcolemma of a muscle cell.
What is a neuromuscular junction?
The molecule that changes shape, pulling tropomyosin out of the way of myosin.
What is troponin?
Muscle that abducts the leg
What is tensor fascial latae?
The muscle obliquely connects the skull th the breastbone ,ddep to the platysma
What is the sternocleidomastoid?
This structure release Ca2+ ions once the wave of depolarization reaches the T-tubules
What is the sacroplasmic reticulum?
The particles that flood a muscle cell when acetylcholine binds to its receptors on the sarcolemma.
What are sodium & potassium ions?
The name for the model of contaction microanatomy, and how the actin & myosin microfilaments stay the same length
What is the sliding filament model?
Superficial, proximal, and medial leg muscle
What is the gracilis?
The superior muscle on the posterior aspect of the scapula
What is the suprapinatus?
What structure does the myosin heads bind to?
What is troponin?
The protein that blocks actin molecule binding sites
What is tropomyosin?
The entering / exiting of Na+ & K+ ions causes ___
What is the wave of depolarization?
Muscla that hyperextends the neck
What is the trapezius?
Deep muscle that connects the superior aspect of the Ilium & lumbar vertebrae to the the proximal end of the femur
What is the iliopsoas?