BIOL 235 Midterm 2 Review
between the origin and insertion which is usually located proximally in limbs ? - Origin
What happens during REVERSE MUSCLE ACTION? - specific movements of the body the
actions are reversed THEREFOR the positions of the origin and insertion of a muscle are
switched...
BIOL 235 Midterm 2 Review between the origin and insertion which is usually located proximally in limbs ? - ✔✔Origin What happens during REVERSE MUSCLE ACTION? - ✔✔specific movements of the body the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched What is a mechanical advantage using the example of a lever? - ✔✔if the load is closer to the fulcrum and the effort is farther from the fulcrum only a small about of effort is needed to move the load Bones serve as levers and joints serve as ________ for the lever - ✔✔fulcrum Agonist (Prime Movers) _________ muscles while antagonist ____________ muscles - ✔✔contract, relax What are muscles that contract and stabilize the intermediate joints called? - ✔✔synergists What is a group of skeletal muscles, their blood vessels, and n erves called? - ✔✔Compartment Origin an insertion of the masseter - ✔✔Origin = maxilla and zygomatic arch Insertion = angle and ramus of the mandible What is the origin of the deltoid ? - ✔✔acromial extremity of clavicle, acromion, and spine of scapula What are the 3 muscles that make up the hamstring ? - ✔✔semimebranosous, semitendinosus, biceps femoris What 4 muscles make up the Quads ? - ✔✔rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis What do you call a small mass of nervou s tissue that is made up primarily of neuron cell bodies? - ✔✔Ganglia The somatic nervous system only sends impulses to ________ muscles - ✔✔skeletal Fight or Flight is associated with which division of the autonomic nervous system? - ✔✔Sympathetic What is the ability to respond to a stimulus and convert it into an action potential? - ✔✔electrical excitability What type of neurons usually have several dendrite and on axon , and are norm ally found in brain and spinal cord as well as motor neurons? - ✔✔Multipolar What type of neurons have one main dendrite and one axon as well as are primarily found in the retina of the eye, inner ear, and the olfactory area of brain? - ✔✔Bipolar What type of neurons has dendrites and one axon that are fused together to form a continuous process that emerges from the cell body? - ✔✔Unipolar or Pseudounipolar The processes of ________ make contact with blood capillaries, neurons, and the pia mater - ✔✔astrocytes What neuroglia has these functions? 1. contain microfilaments that give them strength and allow them to support neurons 2. contributes to the effectiveness of BBB 3.in embyro, they secret chemicals that regulate things 4. help maintain an appropriate chemical environment for nerve impulse g eneration 5. play a role in hearing and memory - ✔✔Astrocytes What neuroglia resemble astrocytes but are smaller and contain fewer processes as well as are responsible fro forming nd maintiang myelin sheath? - ✔✔Oligodendrocytes
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