Ch 1

Question 0

What is microscopic anatomy??

Answer 0

Study of structures too small to be seen by the human eye

Question 1

Levels of structural organization

Answer 1

Atoms, molecule, organelle, smooth muscle cell, smooth muscle tissue, organ level, organ system level, organism level

Question 2

2 types of microscopic anatomy??

Answer 2

Cytology and histology

Question 3

What is cytology?

Answer 3

Study of body cells

Question 4

What is histology?

Answer 4

Study of tissues

Question 5

What are the three subdivisions of anatomy??

Answer 5

1. Gross or macroscopic
2. Microscopic
3. Developmental

Question 6

Define gross anatomy?

Answer 6

Study of structures visible to the naked eye

Question 7

List the 3 parts of gross anatomy:

Answer 7

1. regional anatomy
2. Systemic anatomy
3. Surface anatomy

Question 8

What is developmental anatomy ?

Answer 8

Structural changes that occur in body throughout life

Question 9

Name 3 components of a homestatic control mechanism ?

Answer 9

1. Receptor
2. Control Center
3. Effector

Question 10

What does the receptor do?

Answer 10

• monitors environment

- responds to stimuli

Question 11

What 3 things is the control center responsible for ?

Answer 11

• determines set point
• receives input from receptor
• determines appropriate response

Question 12

Name 3 things the effector does in homeostasis control mechanism ??

Answer 12

• receives output from control center
• provides means to respond
• Response acts to reduce or enhance the stimulus ( feedback)

Question 13

What is positive feedback??

Answer 13

Enhances original stimulus

Question 14

3 steps of negative feedback

Answer 14

Receptors, control center, effectors

Question 15

What are the receptors

ex: negative feedback cycle

Answer 15

Temp sensitive cells in skin and brain

Question 16

Control center ? Neg feedback cycle

Answer 16

Thermoregulatory center in brain

Question 17

Effectors ( neg feedback)

Answer 17

Sweat glands or skeletal muscle

whatever comes into play to counteract the original stimuli

Question 18

2 examples of normal positive feedback:

Answer 18

Child birth. Break or tear in blood vessel wall.

Question 19

Negative feedback definition

Answer 19

Response reduces or shuts off original stimulus

Question 20

Octet rule

Answer 20

of electrons in outermost shell determines whether it will react with another atom

Question 21

What is an ion?

Answer 21

Atoms that gain or lose electrons and become charged

Question 22

Molecule

Answer 22

Two or more atoms bound together