Exam 1: Introduction to Physiology and Homeostasis

On the image four major components of a homeostatic system are labeled A, B, C and D. Match the components with the statements below. Answers can be used more than once. All of the statements are in reference to temperature regulation. -Sweat glands

The ____________________ system controls and coordinates bodily activities that require swift responses, especially to changes in the external environment.

Which of the following body systems is not directed entirely toward maintaining homeostasis?

Temperature-sensitive nerve cells monitor the body temperature and provide information about its status to a temperature-control center 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. Indicate the roles served by each component of this control system using the following answer code: -temperature-sensitive nerve cells

The ____________________ is the liquid part of the blood.

Match the system to the function. -Respiratory System

With positive feedback, a control system's input and output continue to enhance each other.

Which statement(s) regarding stem cells is/are correct?

The ____________________ system eliminates waste products other than carbon dioxide and plays a key role in regulating the volume, electrolyte composition, and acidity of the extracellular fluid.

Endocrine glands secrete hormones into the blood.

Indicate whether the following physiological event represents -the release of a hormone to lower blood calcium levels when it gets too high

The hormone insulin enhances the transport of glucose (sugar) from the blood into most of the body's cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct?

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. This is an example of

A(n) ____________________ is a collection of organs that perform related functions and interact to accomplish a common activity that is essential for survival of the whole body.

Temperature-sensitive nerve cells monitor the body temperature and provide information about its status to a temperature-control center 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. Indicate the roles served by each component of this control system using the following answer code: -body temperature

____________________ cells are specialized to send electrical signals.

MATCHING Use the following answer code to indicate which tissue is being identified. -Skeletal, cardiac, and smooth are types of this tissue.

Organs are composed of two or more kinds of primary tissues.

The two major control systems of the body are the ____________________ and the ____________________.

The internal environment