Body Organization Unit 2

Question 1

What are the levels of body organization?

Answer 1

• Cells
• Tissue
• Organs
• System

Question 2

Cells:

Answer 2

• Fundamental unit of all living things
• All cells perform a specific function
• All tissues are made up of cells

Question 3

Tissues:

Answer 3

- Group of like cells 
working together 
- Four types of tissues 
      • Muscular
      • Epithelial 
      • Connective 
      • Nervous

Question 4

Muscular Tissue:

Answer 4

Produces movement through contraction

• Skeletal muscle: attached to bone
• Smooth Muscle: found in internal organs
• Cardiac Muscle: found in the heart

Question 5

Epithelial Tissue

Answer 5

• Found throughout the body

- Form the covering/lining of body structures

Question 6

Connective Tissue:

Answer 6

- Supporting and protecting tissue 
    • Bone 
    • Cartilage 
    • Tendons 
    • Adipose

Question 7

Nervous Tissue:

Answer 7

• Forms the brain, spinal cord and nerves

Question 8

Organs

Answer 8

Several different types of tissues that work together as a unit

Question 9

Systems

Answer 9

Several organs working together to perform complex functions

Question 10

What is the anatomical position?

Answer 10

• Standing erect
• Arms at sides
• Palms facing forward
• Legs parallel with feet
• Toes facing forward

Question 11

What are the 3 Body planes?

Answer 11

• Sagittal
• Transverse
• Frontal

Question 12

Sagittal Plane

Answer 12

• divides the body into left and right portions

- If the plane divides the body into equal right and left parts, it’s called mid-sagittal

Question 13

Frontal (coronal) Plane

Answer 13

divides the body into front and back portions

Question 14

Transverse Plane

Answer 14

Horizontal plane that divides the body into upper and lower portions

Question 15

Similarities between x-rays, CT scans, MRIS

Answer 15

They all have:

• doctors see internal body
• narrows the cause of injury
• high advanced technology

Question 16

Differences between x-rays, CT scans, MRIS

Answer 16

• MRIS: 
   - 2D picture 
   - Radio waves causes tissue to resonate 
   - No radiation 
• CT Scans: 
   - used radiation + computer technology 
   - 2D picture 
   - see size, shape, position that are deep in the body 
• X-ray:
   - not show much detail 
   - electromagnetic waves 
   - used radiation

Question 17

Dorsal Cavity

Answer 17

Cranial cavity:
- within the skull and contains the brain
Spinal Cavity:
- extends from the cranial cavity and surrounded by the spine and contains the spinal cord

Question 18

Ventral Cavity

Answer 18

• Thoracic Cavity:
- surrounded by the rib cage and above the diaphragm
• Abdominopelvic Cavity:
> divided into 2 parts
~Abdominal cavity:
- superior to pelvic cavity
- contains organs of digestive and excretory systems
~ Pelvic Cavity:
- Lower portion of abdominopelvic cavity
- contains organs of digestive, reproductive and excretory systems

Question 19

2 layer membrane lines the ventral cavities

Answer 19

Pleura-lines the thoracic cavity

Peritoneum-lines the abdominopelvic cavity

Question 20

What are the body regions?

Answer 20

1. Right iliac
2. Epigastric
3. Left Lumbar
4. Right Hypochondriac
5. Umbilical
6. Left iliac
7. Right Lumbar
8. Hypogastric
9. Left Hypochondriac

Question 21

What are the quadrants of the body?

Answer 21

1. Right Upper Quadrant
2. Left Upper Quadrant
3. Right Lower Quadrant
4. Left Lower Quadrant