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ECPI ANATOMY & PHYSIOLOGY EXAM: CHAPTERS 1-3 EXAM QUESTIONS AND ANSWERS $15.49   Add to cart
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ECPI ANATOMY & PHYSIOLOGY EXAM: CHAPTERS 1-3 EXAM QUESTIONS AND ANSWERS
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NEGATIVE FEEDBACK: - Answer-Effectors return conditions toward normal range. - Called "negative" bc the response to the change moved the variable in opposite direction (negative) of the deviation from the set point. - Most common type of homeostatic mechanism. - Prevents sudden, severe chang...

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  • October 26, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ecpi anatomy physiology exam chapters 1 3 exam
  • negative feedback answer effectors return condi

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ECPI ANATOMY & PHYSIOLOGY EXAM:
CHAPTERS 1-3 EXAM QUESTIONS AND
ANSWERS
NEGATIVE FEEDBACK: - Answer-Effectors return conditions toward normal range.

- Called "negative" bc the response to the change moved the variable in opposite
direction (negative) of the deviation from the set point.
- Most common type of homeostatic mechanism.
- Prevents sudden, severe changes in the body.
- Ex: negative feedback controls body temp., blood pressure, glucose level in the blood.

POSITIVE FEEDBACK: - Answer-Change/deviation is intensified - not reversed. Activity
of effector is increased initially, instead of decreasing.
- Uncommon in body / short-lived
- Produce unstable conditions that seem like they will not lead to homeostasis, but they
will.
- Ex: blood clotting and uterus contractions of childbirth.

ANATOMY: - Answer-Study of structure of the human body and its parts

- Derived from the Greek word "cutting up"

PHYSIOLOGY: - Answer-Study of functions of human body and its parts.

- Derived from the Greek word "relationship to nature"

-stasis: - Answer-Having a state of balance or stability.

Ex: homeostasis

Peri- - Answer-Around

Ex: pericardium (around the heart)

Hypo: - Answer-Low, under, beneath, down, or below normal

Ex: hypoglycemia - low blood sugar

Hyper: - Answer-High, beyond, excessive, or above normal

Ex: hyperglycemia - high blood sugar

, Epi: - Answer-Upon, on top of

Pariet: - Answer-A wall (of the body)

VISCERAL LAYER: - Answer-Inner layer which covers an organ

PARIETAL LAYER: - Answer-Outer layer which lines wall of cavity

MEMDIASTINUM: - Answer-Region between lungs in thoracic cavity, which contains
heart, esophagus, trachea, thymus gland.

CONTRALATERAL: - Answer-Opposite sides

IPSILATERAL: - Answer-Same side

HOMEOSTASIS: - Answer-Maintenance of a stable internal environment.

LEVELS OF ORGANIZATION IN ORDER FROM MOST SIMPLE: - Answer-Subatomic
particles
Atoms
Molecules
Macromolecules
Organelle
Cell
Tissue
Organ
Organ system
Organism

SUBATOMIC PARTICLES: - Answer-Protons, neutrons, electrons that make up cells

ATOM: - Answer-Tiny particles that make up chemicals (hydrogen, carbon)

MOLECULE: - Answer-Particles consisting of atoms joined together (water, glucose)

MACROMOLECULE: - Answer-Large particles consisting of molecules (DNA, protein)

ORGANELLE: - Answer-Functional part of a cell (mitochondrion, lysosome) - small
version of an organ
"little organ"

CELL: - Answer-Basic unit of structure and functions (muscle, nerve, or blood cell)

TISSUE: - Answer-Layer or mass of cells with specific function (adipose tissue)

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