Exam 1

Question 1

Anatomical position

Answer 1

The body is erect, arms hanging at the sides, palms forward, and thumbs pointed away from the midline

Question 2

Can lungs carry out excretory functions

Answer 2

Yes, carbon dioxide is a metabolic waste the lungs excrete

Question 3

Homeostasis

Answer 3

The capacity to maintain relatively stable internal conditions despite changes in the external environment

Question 4

Maintain boundaries

Answer 4

To seperate internal and external environments

Question 5

Movement

Answer 5

To obtain food, breathe, move, protect from harm

Question 6

Responsiveness

Answer 6

Detect and respond to environmental changes

Question 7

Digestion

Answer 7

Break down of food for absorption into the blood stream

Question 8

Metabolism

Answer 8

Chemical reactions for energy, growth and body processes

Question 9

Excretion

Answer 9

To remove wastes from the body

Question 10

Hierarchy of body organisations

Answer 10

Atoms combine to form molecules

->cells-> tissue -> organs-> body

Question 11

Digestive system

Answer 11

Takes in nutritions, breaks them down, and eliminates unabsorbed matter(feces)

Question 12

Respiratory system

Answer 12

Takes in oxygen and eliminates carbon dioxide

Question 13

Cardiovascular system

Answer 13

Via the blood, distributes oxygen and nutrients to all body cells and delivers wastes and carbon dioxide to disposal organs

Question 14

Urinary system

Answer 14

Eliminates nitrogenous wastes and excess ions

Question 15

Integumentary system

Answer 15

Protects the body as a whole from the external environment

Question 16

Skeletal system

Answer 16

Protects and supports badly organs, and provides a framework the muscles use to cause movement.

Question 17

Muscular system

Answer 17

Allows manipulation of the environment, locomotion, and facial expression. Maintains posture and produces heat

Question 18

Nervous system

Answer 18

Control system of the body, responds to internal and external changes by activating appropriate muscles and glands

Question 19

Endocrine system

Answer 19

Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use by body cells

Question 20

Lymphatic system/ immunity

Answer 20

Picks up fluid leaked from blood vessels and returns it to blood. Disposes of debris in the lymphatic stream. Houses white blood cells involved in immunity. The immune response mounts the attack against foreign substances within the body

Question 21

Regulation mechanisms

Answer 21

Variable
Receptor
Control centre
Effector

Question 22

Variable

Answer 22

The characteristic of interest. If this characteristic changes outside the normal range it is then the stimulus

Question 23

Receptor

Answer 23

Detects change

Question 24

Control centre

Answer 24

Monitors signals of changes identified, integrates information of different sources and decides and signals if a response is required

Question 25

Effector

Answer 25

This takes action on the change to modify the stimulus size and returns variable to homeostatic level

Question 26

Negative feedback

Answer 26

Reduces the size of the stimulus size