Chapter 1: Introducing the Human Body

What's the principal regulatory system?

The higher you go on the pH scale, the more the H ions

Stimuli that disrupt homeostasis

Sugars & starches that are used as fuel & to store energy

The response of the regulator (control center) is the opposite (negative) to the change

Divides the body into right & left parts

Anions are positively charged ions, Cations are negatively charged ions

What's the simplest level of organization in the human body?

Variation from the steady state sets off a series of events, that intensifies the change

Homeostasis is an inappropriate internal environment, or NOT a steady state

Small, simple chemical compounds such as water, salts, & simple acids & bases

A salty compound that dissociates in solution to produce OH^- & some cation (H ions decrease)

Homeostatic mechanisms are the self regulating control systems that maintain homeostasis

Atoms can combine chemically, forming molecules

What is the hydrogen ion concentration of a solution expressed as?

The chemical activities that take place in the body are its metabolism

What are the four quadrants of the abdominopelvic cavity?

The branch of science that studies body function

Blood has a PH of 7.4

Body fluid does NOT contain electrolytes

Which organ system provides a protective covering for the body & helps to regulate body temperature?

Which system transports nutrients, oxygen, hormones, & carries wastes from the cells to excretory organs

Cells associate to form _______, that may be organized to form organs such as the brain & the heart

Select all of the important groups of organic compounds

Each cell consists of specialized cell parts called

The branch of science that studies body structure

Which system helps support & protect the body & works with the muscular system to carry out effective movement?

Name this anatomical position

When something is toward the surface, it is ______

A catabolic process in which nutrients are broken down

Large complex compounds (Hint: DNA, which makes up genes & RNA, which makes up proteins)

Complex compounds composed of amino acids

Transverse plane divides the body into superior & inferior parts

An atom is the smallest amount of a chemical element

The level of organization above the chemical level is

A base solution is considered salty

Large, complex compounds containing carbon

Catabolism is the "breaking down" phase of metabolism & provides energy

___ include fats, phospholipids & steroids

The nervous system works with the endocrine system to regulate metabolic activities

During ________, energy is used to make chemical compounds & structures needed by the cell

The dorsal cavity includes the vertebral canal and the thorax

When something is within the body, it is _____

Away from the midline or point of attachment to the trunk

The human organism is made up of ___ main organ systems that work together to maintain life

The building blocks of the body are

Tissues and organs functions together to form _________

A compound that dissociates in solution to produce H⁺ & some type of anion (when hydrogen ions increase)

What is the pH of pure water?

The urinary system collects excess tissue fluid for the blood & defends the body agains disease-causing organisms