A&P FINAL EXAM TOPIC 1

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The effector organ for blood pressure maintenance is the

Heart

We live in an ever-changing environment outside of our body, yet our internal conditions remain relatively stable. This is called __________.

Homeostasis

Positive feedback loop is seen in all the following:

Lactation Death due to excessive bleeding Childbirth

Blood glucose concentration rises after a meal and stimulates the pancreas to release the hormone insulin. Insulin travels in the blood and stimulates the uptake of glucose by body cells from the bloodstream, thus reducing blood glucose concentration. This is an example of _________.

Negative Feedback

All the following is OR are true about feedback loops:

Negative feedback loops are the most common type of control mechanism Blood clotting involves positive feedback loop

Which of the following lists levels of human structure from the most complex to the simplest?

Organ System, Organ, Tissue, Cell, Organelle

When a woman is giving birth, the head of the baby pushes against her cervix and stimulates the release of the hormone oxytocin. Oxytocin travels in the blood and stimulates the uterus to contract. Labor contractions become more and more intense until the baby is expelled. This is an example of __________.

Positive Feedback

Which of the following is most likely to cause disease?

Positive Feedback

The lymphatic system is primarily responsible for:

Providing immunity against disease

The components of a homeostasis loop include:

Receptor, Integrating Center, Effector

Three common components of a feedback loop are _________, __________, and __________.

Receptor, integrating (control) center, effector

All of the following are human organ systems (PICK ALL the correct choices)

Skeletal Endocrine Reproductive Lymphatic

A(n) _____________ is a group of similar cells and their intercellular materials in a discrete region of an organ performing a specific function.

Tissue

The kidneys belong to the___________ system:

Urinary


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