An organ is a structure composed of two or more tissue types that work together to carry out a particular function.

Atoms are the smallest particles with unique chemical identities

mechanisms are the predominant way by which the body maintains homeostasis

Formation of a blood clot

Platelet plug formation is a positive feedback mechanism where initial platelet attachment triggers the recruitment of more platelets

Maintenance of normal body temperature

Body temperature is maintained through negative feedback, which counteracts changes to return to a normal range [1].

Maintenance of normal body temperature

Positive feedback amplifies a physiological change in the same direction, such as contractions during childbirth or platelet buildup during blood clotting [1]

Contractions during childbirth

Uterine contractions during childbirth are a positive feedback loop. Pressure on the cervix by the fetus leads to the release of oxytocin, which strengthens contractions, creating a cycle that amplifies the process

Maintenance of normal blood pressure

Blood pressure is regulated by negative feedback, which initiates mechanisms to return it to the normal range when it changes. Positive feedback is a self-amplifying cycle where a physiological change results in a greater change in the same direction

A cell or organ specialized to detect a stimulus

A receptor is a cell or organ specialized to detect a stimulus, such as a taste cell or the eye. A receptor may also be a protein molecule that binds to a chemical such as a hormone, neurotransmitter, or odor molecule.

A molecule, cell, or organ that carries out a response to a stimulus

An effector is a molecule, cell, or organ that carries out a response to a stimulus.

The integrating center of a feedback mechanism processes information, relates it to other information, and makes a decision of action.

A receptor is a cell or organ specialized to detect a stimulus, such as a taste cell or the eye. A receptor may also be a protein molecule that binds to a chemical such as a hormone, neurotransmitter, or odor molecule.

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SMARTBOOK

Question	Answer
An organ system is a group of organs with a collective function, such as circulation, respiration or digestion	Organ System
Organelles are microscopic structures in a cell that carry out its individual functions.	Organelle
Organ	An organ is a structure composed of two or more tissue types that work together to carry out a particular function.
Atom	Atoms are the smallest particles with unique chemical identities
Which of the following describes a single complete individual?	Organism
The pancreas is an example of an	organ
Negative feedback	mechanisms are the predominant way by which the body maintains homeostasis
Medical mistakes, such as prescribing the wrong dose of medication, can result from failure to consider which of the following?	Physiological variation
Formation of a blood clot	Platelet plug formation is a positive feedback mechanism where initial platelet attachment triggers the recruitment of more platelets
Maintenance of normal body temperature	Body temperature is maintained through negative feedback, which counteracts changes to return to a normal range [1].
Maintenance of normal body temperature	Positive feedback amplifies a physiological change in the same direction, such as contractions during childbirth or platelet buildup during blood clotting [1]
Contractions during childbirth	Uterine contractions during childbirth are a positive feedback loop. Pressure on the cervix by the fetus leads to the release of oxytocin, which strengthens contractions, creating a cycle that amplifies the process
Maintenance of normal blood pressure	Blood pressure is regulated by negative feedback, which initiates mechanisms to return it to the normal range when it changes. Positive feedback is a self-amplifying cycle where a physiological change results in a greater change in the same direction
A cell or organ specialized to detect a stimulus	A receptor is a cell or organ specialized to detect a stimulus, such as a taste cell or the eye. A receptor may also be a protein molecule that binds to a chemical such as a hormone, neurotransmitter, or odor molecule.
A molecule, cell, or organ that carries out a response to a stimulus	An effector is a molecule, cell, or organ that carries out a response to a stimulus.
Integrator	The integrating center of a feedback mechanism processes information, relates it to other information, and makes a decision of action.
Receptor	A receptor is a cell or organ specialized to detect a stimulus, such as a taste cell or the eye. A receptor may also be a protein molecule that binds to a chemical such as a hormone, neurotransmitter, or odor molecule.

Created by: Russells3709

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