"Four types of tissues" '
1. Epithelial ' '
Sheets of tightly packed cells
Line body cavities and cover surfaces
- Some secrete and absorb chemicals (glandular epithesia)
(Epithelial Cells - Protects against uid loss, injury, infection
Functions of the Skeletal System 1. Support
How many bones are In the Human body? m bones
How many vertebrae in a human body? 33 vertebrae
How many ribs do humans have?
12 pairs of ribs (24 ribs) bottom two are oating
Spinal column pass
9 characteristics of living
capacity for language
organization, made of cells, all use energy, homeostasis, respond to their environment, gr
Principle functions of the muscle system
produce movement or genera
- contradiction: shortens dista
- skeletal muscle moves bone
Groups work together
Groups oppose each other
moves body parts
4 elements of the 92 naturally occurring elements that make up 96% of the human body
What grows if a person does not get enough of the trace element Iodine?
Why is water a pola
Four functions of the Circulatory System
1. Retrieves nutrients from the digestiv
2. Exchanges gases with the respiratory
3. Carries wastes, excess water, and sal
Three main components of Circulatory System
4. Carries some metabolic wastes to th
What is the purpose of the
Three functions of the Lymph
How does skin act as a nonspecific defense mechanism?
mechanism of the body
protect the body from the day to day threat of
Which organelles are part of the
What type of cell contains