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29 Cards in this Set
- Front
- Back
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What are the 2 components of the central nervous system?
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Brain & spinal chord
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What are the 2 components of the peripheral nervous system?
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Spinal nerves & cranial nerves
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What are the 2 cerebral hemispheres of the brain called?
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The cerebellum
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What four parts make up the cerebrum?
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Frontal, parietal, occipital, and temporal lobes.
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Function of the frontal lobe?
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Motor/movement
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Function of the parietal lobe?
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Sensory cortex
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Function of the occipital lobe?
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Vision
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Function of the temporal lobe?
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Hearing/smelling/learning/memory
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What is the function of the cerebellum? (2)
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Balance and equilibrium
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What is the brain stem?
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The interface between the cerebellum and the spinal chord.
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What is the medulla?
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A collection of neurons that perform life-sustaining functions.
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What is a reflex?
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When sensory information is received and stays at the spinal chord level, (information never gets sent to the brain).
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Where does an interneuron lie?
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Between the sensory & motor neuron.
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What is another name for the kneejerk reflex?
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Stretch reflex/patella reflex
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What does the patella tendon connect?
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The quadriceps muscle to the patella bone.
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Does the quadriceps cause leg muscle extension or flexion?
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Extension
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True or False: The pupil is actually a tiny hole?
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TRUE
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What is the function of the lens?
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Helps focus light.
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What is the fovea contralis?
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It is the part of the eye where photoreceptors are most concentrated.
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What does the optic nerve connect?
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The eye to the brain.
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What is morphogenesis?
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When body parts become shaped and patterned into a certain form.
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What is cleavage?
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Successive division of the embryo. No accompanying increase in size.
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What is the morula?
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A ball of cells that is about the same size as the original zygote.
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What is the blastula?
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A single-layered ball of cells with a fluid-filled cavity in the middle.
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What is the gastrula?
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The result of a blastula; when the cells of the blastula fold inward.
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What is a somite?
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A block of developing muscle tissue.
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By what process does the embryo divide with no increase in size?
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Cleavage
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Name the stage of development when the embryo is a ball of solid cells.
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Morula
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What is the function of the amnion?
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Bathes the embryo and prevents it from drying out.
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