Exam 1: Introduction to Physiology and 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: -sweating

To sustain life, the internal environment must be maintained in an absolutely unchanging state.

Every organ system of the human body is focused on homeostasis as its primary function.

When a blood capillary is cut, a clot forms under which influence?

The smallest unit capable of carrying out the processes associated with life is the ____________________.

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. -The act of shivering.

Factors that are homeostatically regulated are maintained at a constant, fixed level unless disease is present.

Which sequence represents the correct hierarchy of biological organization?

____________________ refers to maintenance of a relatively stable internal environment.

Nutrients and oxygen are distributed through the body mainly by the ____ system.

The activity of one organ is influenced by the activity of several other organs to maintain homeostasis. This is an example of:

Select the correct statement about muscle tissue

Which of the following is associated with communication between body cells?

Intrinsic control mechanisms involve the interactions of several different organs.

MATCHING Use the following answer code to indicate which tissue is being identified. -Glands are a derivative of this tissue type.

Most body cells are not in direct contact with the external environment.

Some organs, such as the heart, skin, and intestine, belong to more than one body system.

MATCHING Use the following answer code to indicate which tissue is being identified. -The skin is this tissue type.

Indicate whether the following physiological event represents -increased blood flow into muscle tissue in response to a localized increase in carbon dioxide

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. -The act of sweating.