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midterm 3 bmcc summer Exam Questions and Answers (100% Pass)
midterm 3 bmcc summer Exam Questions and Answers (100% Pass)
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©PREP4EXAMS@2024 [REAL EXAM DUMPS] Thursday, July 18, 2024 5:35 PMmidterm 3 bmcc summer Exam Questions and
Answers (100% Pass)
which two systems work together to maintain internal coordination - ✔️✔️nervous system
endocrine system
nervous system - ✔️✔️electrical and chemical messages from cell to cell
endocrine system - ✔️✔️chemical messengers (hormones) secreted into the blood
central nervous system - ✔️✔️brain and spinal cord
peripheral nervous system - ✔️✔️nerves and ganglia
nerves - ✔️✔️bundles of nerve fibers (axons) wrapped in fibrous connective tissue
ganglia - ✔️✔️knot like swelling in a nerve where neuron cell bodies are concentrated
what moves when the neurons are sent - ✔️✔️muscles and glands
functional classes of neurons - ✔️✔️sensory (afferent)
motor (efferent)
sensory (afferent) - ✔️✔️signals from receptors TO the CNS
motor (efferent) - ✔️✔️signals FROM the CNS
what are the two further divisions that sensory and motor are divided into - ✔️✔️somatic sensory
& visceral sensory
somatic motor & viceral motor
somatic sensory - ✔️✔️from skin, muscles, bones and joints
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,©PREP4EXAMS@2024 [REAL EXAM DUMPS] Thursday, July 18, 2024 5:35 PM
visceral sensory - ✔️✔️heart, lungs, stomach, urinary bladder
somatic motor - ✔️✔️TO skeletal muscles (muscular contractions & somatic reflexes)
visceral motor - ✔️✔️aka autonomic ns
autonomic ns - ✔️✔️sympathetic and parasympathetic
sympathetic - ✔️✔️accelerate the body
increase bp, heart rate, airflow, blood glucose, reduce blood flow to the skin and digestive tract
(fight or flight)
norepinephrine
parasympathetic - ✔️✔️slow down the body
digestion and waste elimination (rest and digest)
acetylcholine ACh
properties of neurons - ✔️✔️excitability, conductivity, secretion
excitability - ✔️✔️stimuli
conductivity - ✔️✔️produce electrical signals
secretion - ✔️✔️release chemical neurotransmitters
dendrites - ✔️✔️short branches that receive signals from other neurons
axon - ✔️✔️nerve fibers-- rapid conduction of electrical signals
why is there no centrioles - ✔️✔️mitotis
structure of a neuron - ✔️✔️axoplasma
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, ©PREP4EXAMS@2024 [REAL EXAM DUMPS] Thursday, July 18, 2024 5:35 PM
axolemma
axon collaterals
terminal arborization
axon terminals
myelin sheath
axoplasma - ✔️✔️cytoplasma
axolemma - ✔️✔️plasma membrane
axon collaterals - ✔️✔️branches of axons
terminal arborization - ✔️✔️extensive complex of fine branches at distal end
axon terminals - ✔️✔️swelling that form contact points (synapses) with other cell
myelin sheath - ✔️✔️insulating layer surrounding some axons
formed by glia cells
electrical signals travel faster down myelinated axons
structural classification of neurons - ✔️✔️unipolar
bipolar
multipolar
anoxic
unipolar - ✔️✔️sensory cells
bipolar - ✔️✔️one axon one dendrite (olfactory, inner ear)
multipolar - ✔️✔️most neurons
anaxonic - ✔️✔️multiple dendrite
brain and adrenal gland
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