 |
1 | |
The basic living unit of all organisms is the |
| | A) | organelle. |
| | B) | cell. |
| | C) | tissue. |
| | D) | organ. |
| | E) | organ system. |
|
|
2 | |
Given these levels of organization: 1. cell, 2. chemical, 3. organelle, 4. organ, 5. tissue. Choose the arrangement that lists the levels of organization in the correct order from smallest to largest. |
| | A) | 1,2,3,4,5 |
| | B) | 2,3,1,5,4 |
| | C) | 3,2,1,4,5 |
| | D) | 4,1,3,2,5 |
| | E) | 5,3,1,4,2 |
|
|
3 | |
Homeostasis is an example of which of the following characteristics of life? |
| | A) | organization |
| | B) | metabolism |
| | C) | responsiveness |
| | D) | growth |
| | E) | differentiation |
|
|
4 | |
Homeostatic mechanisms |
| | A) | keep variables exactly at the set point. |
| | B) | help to keep a relatively constant internal environment in the body. |
| | C) | act to keep values out of the normal range. |
| | D) | usually operate by positive feedback. |
| | E) | produce most disease conditions. |
|
|
5 | |
Negative-feedback mechanisms |
| | A) | are not homeostatic. |
| | B) | are rare in healthy individuals. |
| | C) | respond by making deviations from normal even larger. |
| | D) | are counteracted by most medical therapy. |
| | E) | may have a receptor, a control center, and an effector. |
|
|
6 | |
Which of these conditions indicate positive feedback has occurred? |
| | A) | Blood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. |
| | B) | Hot temperatures increase your body temperature above normal; you sweat. |
| | C) | Cold temperatures decrease your body temperature below normal; you shiver. |
| | D) | Blood pressure decreases; as a result, your heart rate increases. |
|
|
7 | |
A term that means "toward the midline" is: |
| | A) | distal |
| | B) | lateral |
| | C) | medial |
| | D) | proximal |
| | E) | superior |
|
|
8 | |
The wrist is ______ to the hand. |
| | A) | distal |
| | B) | inferior |
| | C) | lateral |
| | D) | medial |
| | E) | proximal |
|
|
9 | |
Coronal (frontal) planes divide the body into ______ portions. |
| | A) | right and left |
| | B) | anterior and posterior |
| | C) | superior and inferior |
| | D) | dorsal and ventral |
| | E) | both b and d |
|
|
10 | |
Which of these planes can divide the body into equal halves? |
| | A) | frontal (coronal) |
| | B) | sagittal |
| | C) | transverse |
|
|
11 | |
Which of these statements concerning body regions is correct? |
| | A) | The trunk region between the thorax and pelvis is the abdomen. |
| | B) | The leg extends from the hip to the ankle. |
| | C) | The forearm extends from the shoulder to the wrist. |
| | D) | The trunk can be divided into the thorax and pelvis. |
| | E) | The thorax is often subdivided superficially into four quadrants. |
|
|
12 | |
The thoracic cavity is divided into two parts by the |
| | A) | mediastinum. |
| | B) | pleural cavity. |
| | C) | diaphragm. |
| | D) | peritoneal membranes. |
| | E) | pelvic cavity. |
|
|
13 | |
Serous membranes |
| | A) | line body cavities that open to the outside. |
| | B) | produce a lubricating film of fluid. |
| | C) | are found only on the walls of the thoracic cavity. |
| | D) | separate the abdominal cavity from the pelvic cavity. |
| | E) | completely cover retroperitoneal organs. |
|
|
14 | |
The serous membrane on the surface of the lungs is called |
| | A) | parietal pericardium. |
| | B) | visceral pericardium. |
| | C) | parietal pleura. |
| | D) | visceral pleura. |
| | E) | parietal peritoneum. |
|
|
15 | |
You are standing on your head. Your head is to your neck. |
| | A) | superior |
| | B) | inferior |
| | C) | superficial |
| | D) | medial |
| | E) | proximal |
|
2002 McGraw-Hill Higher Education