10/30/25, 2:07 PM Hondros Bio 253 questions and answers Flashcards | Quizlet
Hondros Bio 253 questions and answers
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Practice questions for this set
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Hypothalamus, Thalamus
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1 Layers of the skin 2 Reflex Arc
3 Stratum Spinosum 4 Diencephalon
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Terms in this set (85)
Layers of the skin epidermis, dermis, hypodermis
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, 10/30/25, 2:07 PM Hondros Bio 253 questions and answers Flashcards | Quizlet
Protective durable overcoat, waterproof, tough,
Stratum Corneum relatively insensitive to biological, chemical and
physical assault.
visible only in thick skin, few layers thick, dead clear
Stratum Lucidum
cells
Stratum Granulosum 3-5 layers of thick keratinocytes flastten out
overlies the stratum basale, cells come from the
basale, filaments u the cells that resist tension,
Stratum Spinosum
keratinocytes have a spiny appearance, contain
langerhen cells
Deepest layer, single row if renewing keratinocytes
Stratum Basale that are getting ready to push up, melaninocytes,
small portion of merkel cells
Parts of a neuron Cell body, Dendrites, Axon
Provide protein for maintaining and regenerating
Cell body
nerves
Each neuron had one or more dendrites, branch from
Dendrites the cell body, bring impulses in, distal ends of
dendrites of sensory neurons are receptors
Each neurons has one axon, axon hillock integrates
Axon incoming signals. axons carry impulses away and
communicates
Afferent neurons Brings signal to CNS, *sensory
Efferent neurons Carry signals away, *motor
Receptor, afferent, interneuron, efferent, effector,
Reflex Arc
response
Slight deficiency of positively charged ions on the
Membrane potential
inside of the membrane
In myelinated fibers, action potentials in the
Saltatory conduction
membrane occor only at the nodes of Raniver
https://quizlet.com/1100874997/hondros-bio-253-questions-and-answers-flash-cards/?new 2/7
Hondros Bio 253 questions and answers
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Hypothalamus, Thalamus
Choose an answer
1 Layers of the skin 2 Reflex Arc
3 Stratum Spinosum 4 Diencephalon
Don't know?
Terms in this set (85)
Layers of the skin epidermis, dermis, hypodermis
https://quizlet.com/1100874997/hondros-bio-253-questions-and-answers-flash-cards/?new 1/7
, 10/30/25, 2:07 PM Hondros Bio 253 questions and answers Flashcards | Quizlet
Protective durable overcoat, waterproof, tough,
Stratum Corneum relatively insensitive to biological, chemical and
physical assault.
visible only in thick skin, few layers thick, dead clear
Stratum Lucidum
cells
Stratum Granulosum 3-5 layers of thick keratinocytes flastten out
overlies the stratum basale, cells come from the
basale, filaments u the cells that resist tension,
Stratum Spinosum
keratinocytes have a spiny appearance, contain
langerhen cells
Deepest layer, single row if renewing keratinocytes
Stratum Basale that are getting ready to push up, melaninocytes,
small portion of merkel cells
Parts of a neuron Cell body, Dendrites, Axon
Provide protein for maintaining and regenerating
Cell body
nerves
Each neuron had one or more dendrites, branch from
Dendrites the cell body, bring impulses in, distal ends of
dendrites of sensory neurons are receptors
Each neurons has one axon, axon hillock integrates
Axon incoming signals. axons carry impulses away and
communicates
Afferent neurons Brings signal to CNS, *sensory
Efferent neurons Carry signals away, *motor
Receptor, afferent, interneuron, efferent, effector,
Reflex Arc
response
Slight deficiency of positively charged ions on the
Membrane potential
inside of the membrane
In myelinated fibers, action potentials in the
Saltatory conduction
membrane occor only at the nodes of Raniver
https://quizlet.com/1100874997/hondros-bio-253-questions-and-answers-flash-cards/?new 2/7
