animal cells tissues body systems

Animal Cells, Tissues and SystemsLevels of organization

Cells—

Tissues—

Organs—

Organ Systems—

Tissue Types

Epithelial—

Homeostasis—

All body systems work together to maintain homeostasis

Negative Feedback -

Examples of Temperature Control (Ways to maintain homeostasis)Endotherm—

Ex. birds and mammalsEctotherm—

Ex. reptile, amphibians, fishes

Body Systems

1. Nervous System—

Function—controls and coordinates functions throughout the body and responds to internal and external stimuli.

Frontal Lobe: making judgments,

Steps of synaptic nerve activity forming plans, evaluating consequences 1.

2.

3.

4.

2. Skeletal System—

Function—supports the body, protects internal organs, allows movement, stores mineral reserves, and provides a site for blood cell formation.

3. Muscular System—

Function—works with skeletal system to produce voluntary movement, helps to circulate blood and move food through the digestive system

4. Integumentary System—

Function—serves as a barrier against infection and injury, helps to regulate body temperature, provides protection against ultraviolet radiation from the sun E—sebaceous (oil) gland

5. Circulatory System—

Function—carries oxygen, nutrients, and hormones to the cells of the body, helps fight infection, carries cell waste to the kidneys, helps regulate body temperature

6. Respiratory System—

Function—provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body.

7. Digestive System—

Function—breaks down food into simpler compounds that the cells of the body can use, absorbs nutrient, absorbs water, eliminates waste.

8. Excretory System—

Function—eliminates waste in ways that maintain proper water and salt balance (homeostasis)

9. Endocrine System—

Function—controls growth, development, and metabolism, sexual maturity (reproduction), also maintains homeostasis

10. Reproductive System—

Function—produces reproductive cells, eggs in females, sperm in males, provides for the developing embryo

11. Lymphatic/Immune Systems—

Function—helps protect the body from disease, collects fluid lost from blood vessels and returns the fluid to the circulatory system