Exam 1: The Foundation of Physiology

Endocrine glands secrete hormones through ducts into the blood.

A mechanistic explanation of why a person sweats is to cool off.

Sweating is initiated in response to a rise in body temperature that occurs on exposure to a hot environment.Evaporation of the sweat cools the body.What kind of example is this?

The lungs remove carbon dioxide from the blood plasma.

The plasma surrounds and bathes all of the body's cells.

By using the following answer code (options may be used more than once or not at all), indicate whether the following physiological event represents -increased blood flow into muscle tissue in response to a localized increase in carbon dioxide

The skin is part of the integumentary system.

MATCHING Indicate which tissue is being identified by using the answer code (options may be used more than once or not at all). -The brain is primarily made of this tissue.

Which statement does NOT describe the study of physiology?

Enzymes are carbohydrates.

Indicate the roles served by each component of this control system by using the answer code. Temperature-sensitive nerve cells monitor the body temperature and provide information about its status to a temperature-control centre in the hypothalamus, a part of the brain. The hypothalamus can bring about adjustments in body temperature by inducing shivering or sweating, among other things. -temperature-sensitive nerve cells

____________________ muscle tissue composes the heart.

MATCHING Indicate which tissue is being identified by using the answer code (options may be used more than once or not at all). -This tissue is distinguished by relatively few cells within an extracellular material.

In a negative feedback loop,which component produces a response that changes a controlled condition?

Which of the following type of tissues uses the terminology "smooth"?

Glands are formed during embryonic development by pockets of epithelial tissue that dip inward from the surface.

MATCHING Indicate which tissue is being identified by using the answer code (options may be used more than once or not at all). -Glands are a derivative of this tissue type.

The endocrine system functions with the circulatory system for the transport of hormones.

Feedforward mechanisms bring about a response in reaction to a change in a regulated variable.

Negative feedback operates to maintain a controlled factor in a relatively steady state,whereas positive feedback moves a controlled variable even further from a steady state.