Psl - Study guides, Class notes & Summaries

Hormones correct answer: Peptide, amide, and steroid hormones are the three major classes. Hydrophilic Hormones correct answer: Water soluble, cannot cross plasma membranes. Includes peptide hormones, protein hormones, and catecholamines Hydrophobic Hormones correct answer: Not water soluble, need a carrier protein to travel in blood, can cross plasma membrane. Includes steroid and thyroid hormones. Secretion of Hydrophilic Hormones correct answer: Exocytosis, synthesized in advance...

Which gametes are responsible for sex? correct answer: The sex chromosomes (X or Y) Bipotential Primordium correct answer: Has both mullerian duct and wolffian duct, potential for either male or female development. XX Structure development correct answer: Mullerian duct persists and forms the fallopian tube, uterus, and upper third of the vagina, including the cervix. Wolffian duct regresses due to lack of testosterone. Gondal cortex forms ovary, gondal medulla regresses. XY extra ge...

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The efferent output of the brain and spinal cord is to control.... - answer-all the effectors of the body What one thing does the somatic nervous system control? - answer-Skeletal muscle What are the cells that line your stomach called? - answer-enterocytes interoceptors do what? - answer--internal receptors -visceral senses (deep) ex: nociceptors sense pain in stomach exteroceptors do what? - answer-sense external environment; general senses are located in your skin Proprioc...

PSL 250 Final Book Exam 2015

Simple Reflexes correct answer: Sensory neurons make synapses with spinal cord motoneurons to mediate simple reflexes. This is the simplest form of motor control Central Pattern Generators correct answer: Networks of interneurons in the spinal cord and brainstem coordinate the interactions of many groups of motor groups. Works for things such as breathing, flying, etc. Produces a rhythmic pattern output. Complex / Volitional Movement correct answer: Motor output that is planned and refi...

GI reflexes ______ occur without involvement of the central nervous system (without the central nervous system being involved in the reflex). A.) Can B.) Cannot correct answers A. Can Saliva A.) helps keep teeth clean B.) allows food molecules to stimulate the taste buds C.) contains lysozyme D.) A and B E.) A, B, and C correct answers E.) A, B, and C Digestion of carbohydrates (starches) begin in the A.) small intestine B.) large intestine C.) stomach D.) mouth correct answ...

What is the presynaptic neuron? correct answers the neuron that conducts the impulse TO the synapse What is the postsynaptic neuron? correct answers the neuron that conducts the impulse AWAY FROM the synapse What is the synaptic cleft? correct answers the space between the presynaptic and postsynaptic neurons What is the synaptic knob? correct answers the swelled-up tip of the axon terminal of the presynaptic neuron What are the synaptic vesicles? correct answers - sacs within t...

PSL 310 Exam 3 review