Muscle Anatomy
The type of muscle found in the heart.
What is cardiac muscle?
Name a strong person.
Anyone, but double points if you say Dr. Bradshaw
The final answer option on a scantron form
What is E?
The central division of the nervous system that contains the brain and spinal cord.
What is the central nervous system?
Another term for the chemical force in the electrochemical forces that move ions across membranes. Moves ions from high to low concentrations.
What is diffusion?
The technical name for the thin myofilament.
What is actin?
The ion that is stored in the terminal cisternae.
What is calcium?
The connective tissue that surrounds each muscle fiber.
What is endomysium?
What are astrocytes?
When the inside of the membrane becomes less negative (more positive).
What is depolarization?
The smallest contractile unit of a muscle.
What is a sarcomere?
The space between the nerve and the muscle in the neuromuscular junction.
What is the synaptic cleft?
The functional characteristic of muscle that allows it to recoil and resume its original resting length.
What is elasticity?
What is an axodendritic synapse?
The ion that leaves the neuron during repolarization.
What is potassium?
The functional characteristic of muscle that allows it to shorten forcibly.
What is contractility?
The molecule that is blocking the binding sites on actin.
What is tropomyosin?
Glial cells that range in shape from squamous to columnar and circulate cerebrospinal fluid.
What are ependymal cells?
Gaps in the myelin sheath between adjacent Schwann cells. Allows for saltatory conduction.
What are Nodes of Ranvier?
The gate that prevents sodium from entering the cell during repolarization.
What are sodium inactivation gates?
The area of the muscle where only thin filaments are found.
What is the I band?
The term for when more sodium enters the cell than potassium leaves the cell and the inside of the muscle cell becomes more positive at the neuromuscular junction.
What is end plate potential?
The motor division that transmits impulses from the CNS to effector organs.
What is efferent division?
The class of neurotransmitters that contains dopamine, norepinephrine, and epinephrine.
What are catecholamines?
The type of summation where EPSPs from two different axons summate.
What is spatial summation?