HONDROS BIO 253 Questions with Correct Solutions
Question:
1. Layers of the skin
Answer:
epidermis, dermis, hypodermis
Question:
2. Stratum Corneum
Answer:
Protective durable overcoat, waterproof, tough, relatively insensitive to biological, chemical
and physical assault.
Question:
3. Stratum Lucidum
Answer:
visible only in thick skin, few layers thick, dead clear cells
Question:
4. Stratum Granulosum
Answer:
3-5 layers of thick keratinocytes flastten out
Question:
5. 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
Question:
6. Stratum Basale
Answer:
Deepest layer, single row if renewing keratinocytes that are getting ready to push up,
melaninocytes, small portion of merkel cells
Question:
7. Parts of a neuron
, Answer:
Cell body, Dendrites, Axon
Question:
8. Cell body
Answer:
Provide protein for maintaining and regenerating nerves
Question:
9. 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
Question:
10. Axon
Answer:
Each neurons has one axon, axon hillock integrates incoming signals. axons carry impulses
away and communicates
Question:
11. Afferent neurons
Answer:
Brings signal to CNS, *sensory
Question:
12. Efferent neurons
Answer:
Carry signals away, *motor
Question:
13. Reflex Arc
Answer:
Receptor, afferent, interneuron, efferent, effector, response
Question:
14. Membrane potential
Answer:
Slight deficiency of positively charged ions on the inside of the membrane
Question:
1. Layers of the skin
Answer:
epidermis, dermis, hypodermis
Question:
2. Stratum Corneum
Answer:
Protective durable overcoat, waterproof, tough, relatively insensitive to biological, chemical
and physical assault.
Question:
3. Stratum Lucidum
Answer:
visible only in thick skin, few layers thick, dead clear cells
Question:
4. Stratum Granulosum
Answer:
3-5 layers of thick keratinocytes flastten out
Question:
5. 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
Question:
6. Stratum Basale
Answer:
Deepest layer, single row if renewing keratinocytes that are getting ready to push up,
melaninocytes, small portion of merkel cells
Question:
7. Parts of a neuron
, Answer:
Cell body, Dendrites, Axon
Question:
8. Cell body
Answer:
Provide protein for maintaining and regenerating nerves
Question:
9. 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
Question:
10. Axon
Answer:
Each neurons has one axon, axon hillock integrates incoming signals. axons carry impulses
away and communicates
Question:
11. Afferent neurons
Answer:
Brings signal to CNS, *sensory
Question:
12. Efferent neurons
Answer:
Carry signals away, *motor
Question:
13. Reflex Arc
Answer:
Receptor, afferent, interneuron, efferent, effector, response
Question:
14. Membrane potential
Answer:
Slight deficiency of positively charged ions on the inside of the membrane
