Exam 1: Introduction to Physiology and Homeostasis

In which of the body systems is calcium mainly stored?

Platelets, which have negatively charged cell membranes, adhere to the positively charged surface of a torn blood vessel. As they do so, they release substances that attract more platelets to the damaged area and change the charge on their cell membranes to positive. More platelets adhere to the damaged area. The cycle repeats until the damaged area is sealed. What sort of feedback loop is formed, and why?

____________________ refers to the abnormal functioning of the body associated with disease.

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

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

Match the terms labelled a. through d. with their correct descriptions. (Options may be used more than once or not at all.) a.nervous tissue b.epithelial tissue c.muscle tissue d.connective tissue -Bone is this tissue type.

The ____________________ is the liquid part of the blood.

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.

Match the terms labelled a. through d. with their correct descriptions. (Options may be used more than once or not at all.) a.nervous tissue b.epithelial tissue c.muscle tissue d.connective tissue -The digestive tract is lined with this tissue.

____________________ are the blood vessels in which materials are mixed between the blood plasma and the interstitial fluid.

Which of the following is a mechanistic rather than a teleological explanation of a physiological phenomenon?

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

Enzymes are carbohydrates.

____________________ refers to maintenance of a relatively stable internal environment.

Which of these tissues can be found on the outer layer of the skin?

Which statement is correct for the respiratory system?

____________________ are composed of two or more types of primary tissue organized to perform a particular function or functions.

A mechanistic explanation of why a person breathes is to obtain oxygen.

Which of the following systems mainly distributes nutrients and oxygen through the body?

The outer layer of the skin is composed of __________________.