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HONDROS BIO 253 QUESTIONS WITH VERIFIED ANSWERS
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HONDROS BIO 253 QUESTIONS WITH VERIFIED ANSWERSHONDROS BIO 253 QUESTIONS WITH VERIFIED ANSWERSHONDROS BIO 253 QUESTIONS WITH VERIFIED ANSWERSHONDROS BIO 253 QUESTIONS WITH VERIFIED ANSWERSLayers of the skin - ANSWER-epidermis, dermis, hypodermis Stratum Corneum - ANSWER-Protective durable overco...

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  • January 20, 2025
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • hondros bio 253 answers
  • hondros bio 253 questions with verified answers
  • layers of the skin answer epidermis dermis hyp

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HONDROS BIO 253 QUESTIONS WITH
VERIFIED ANSWERS
Layers of the skin - ANSWER-epidermis, dermis, hypodermis

Stratum Corneum - ANSWER-Protective durable overcoat, waterproof, tough, relatively
insensitive to biological, chemical and physical assault.

Stratum Lucidum - ANSWER-visible only in thick skin, few layers thick, dead clear cells

Stratum Granulosum - ANSWER-3-5 layers of thick keratinocytes flastten out

Stratum Spinosum - ANSWER-overlies the stratum basale, cells come from the basale,
filaments u the cells that resist tension, keratinocytes have a spiny appearance, contain
langerhen cells

Stratum Basale - ANSWER-Deepest layer, single row if renewing keratinocytes that are
getting ready to push up, melaninocytes, small portion of merkel cells

Parts of a neuron - ANSWER-Cell body, Dendrites, Axon

Cell body - ANSWER-Provide protein for maintaining and regenerating nerves

Dendrites - ANSWER-Each neuron had one or more dendrites, branch from the cell
body, bring impulses in, distal ends of dendrites of sensory neurons are receptors

Axon - ANSWER-Each neurons has one axon, axon hillock integrates incoming signals.
axons carry impulses away and communicates

Afferent neurons - ANSWER-Brings signal to CNS, *sensory

Efferent neurons - ANSWER-Carry signals away, *motor

Reflex Arc - ANSWER-Receptor, afferent, interneuron, efferent, effector, response

Membrane potential - ANSWER-Slight deficiency of positively charged ions on the
inside of the membrane

Saltatory conduction - ANSWER-In myelinated fibers, action potentials in the membrane
occor only at the nodes of Raniver

Continuous conduction - ANSWER-In unmyelinated fibers

, Acetylcholine - ANSWER-chemical structure, found in junctions with motor effectors
(skeletal muscles, glands, many parts of the brain

Brain stem - ANSWER-Medulla oblongata, pons, midbrain

Diencephalon - ANSWER-Hypothalamus, Thalamus

Cerebellum - ANSWER-Compares motor commands of cerebrum with proprioceptor
information, acts with cerebral cortex to produce skilled movements, controls balance
and posture

Frontal lobe - ANSWER-Reasoning, planning, parts of speech, movements, emotions,
and problem solving

Accessory nerve (CN XI) - ANSWER-shoulder movements, turning movements of the
head, proprioception

Hypoglossal nerve (CN XII) - ANSWER-tongue movements, proprioception

Referred pain - ANSWER-the stimulation of pain receptors in deep structures may be
felt as pain in the skin that lies over the affected organ or in an area of skin on the body
surface far removed from the site of disease or injury

General senses - ANSWER-somatic senses, microscopic receptors widely distributed
throughout the body

special senses - ANSWER-smell, taste, vision, hearing and equilibrium are grouped into
localized areas or complex organs

Parietal lobe - ANSWER-movement, orientation, recognition, perception of stimuli,
lanuagae

Temporal lobe - ANSWER-perception and recognition of auditory stimuli, memory, and
speech

Occipital lobe - ANSWER-visual processing

Olfactory nerve (CN I) - ANSWER-sense if smell

Optic nerve (CN II) - ANSWER-sense of sight

Oculomotor nerve (CN III) - ANSWER-eye movement, regulation of size of pupil,
accommodation, proprioception (muscles sense)

Trochlear nerve (CN IV) - ANSWER-eye movement, proprioception

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