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Study Stack 2

Weeks 6-12

The structures called the skeletal muscles are? Muscles
Skeletal muscle tissues (or muscle fibers) are covered by a delicate connective tissue membrane called? Endomysium
Groups of skeletal muscle fibers, called fascicles, are then bound together into bundles by a tougher connective tissue envelope called? Perimysium
The muscle as a whole is covered by a course sheath called the? Epimysium
What are the six muscles shapes that are often used to describe and categorize skeletal muscles? Parallel, Convergent, Pennate, Fusiform, Spiral, and Circular muscles
The term used to describe a muscle that directly performs a specific movement. Prime mover
Muscles that when contracting directly oppose prime movers (or agonists) Antagonists
Muscles that contract at the same time as the prime mover Synergists
Generally functions as joint stabilizers Fixator muscle
How are muscles named? Location, function, shape, direction of fibers, number of head or divisions, points of attachment, and size of muscle.
The pectoralis major muscle is an example of a _____ muscle. Convergent
True or False: There are more than 600 muscles in the body. True
The teres major and teres minor muscles move the: Arm
Skeletal muscles constitute approximately ____ of our body weight. 50%
The white matter of the nervous system is made up of: Myelinated fibers.
Fascicles are held together by a connective tissue layer called the: Perineurium.
Dendrites conduct impulses _____ cell bodies. Toward
Along a neuron, the correct pathway for impulse conduction is: Dendrite, cell body, and axon.
Gray matter in the brain and spinal cord consists primarily of: Cell bodies
Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: A neurilemma.
Nerves that contain mostly afferent fibers are called _____ nerves. Sensory
The areas specializing in language functions are found in the left cerebral hemisphere about 90% of the population.
The layer of the meninges that serves as the inner periosteum of the cranial bone is the: Dura mater
Spinal nerves are _____ fibers. Motor and sensory
Impulses from which system play a part in arousing or alerting the cerebrum? Reticular activating system
Largest purely endocrine gland in the body. Thyroid gland
Endocrine gland of the thorax that is also important in immune function. Thymus gland
The nerve carrying taste information from the anterior two-thirds of the tongue is the Facial
Receptors for hearing are located in the Cochlear duct.
Hormone that inhibits osteoclast activity in children. Calcitonin
Transparent structure of the eye containing regularly aligned collagen fibers. Cornea
The bulk of the heart wall is the thick, contractile middle layer called the Myocardium.
Blood flow from the heart through blood vessels to all parts of the body and back to the heart is referred to as _____ circulation. Systemic
Platelets play an important role in Blood clotting
The heart valves that are located where the trunk of the pulmonary artery joins the right ventricle and where the aorta joins the left ventricle are called Semilunar valves.
The _____ drains much of the superficial leg and foot. Great saphenous vein
Mechanical devices that permit the flow of blood in one direction only are called Valves
The four structures that compose the conduction system of the heart are the SA node, AV node, AV bundle, and Purkinje fibers.
Created by: Monica0278



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