Lecture 1 Flashcards
Unicellular organism
single cell (bacteria, yeast)
Multi-Cellular
More than one cell
Structure of Multicellular Cell
- Molecules
- Organelles
- Cells
- Tissues
- Organs
- Systems
- Organism
Mucosa
Lining of internal organs
Function of Integumentary System
Regulate body temperature
Why are bones white
Because they produce a lot of calcium
Integumentary System
Skin, hair, nails, and exocrine glands
System
Group of elements forming a common complex whole functional unit
Skeletal System
Bones, joints, and ligaments (provides support to protect internal organs)
The 7 Body Systems
-Molecules
-Organelles
-Cells
-Tissues
-Organs
-Systems
-Body
Muscular System
Skeletal, smooth, cardiac muscles
Function of Muscular System
Movement and posture wall of GI tract vessels and myocardium (muscle of the heart)
Nervous System
Central Nervous System (brain and spinal cord) and the Peripheral Nervous System
Function of the Nervous System
Transmits and processes information from the sensory organs to send information to effector organs (muscles and glands)
Endocrine System
Composed of endocrine glands (pituitary, thyroid, parathyroid) to produce hormones
Function of Endocrine System
Helps regulate homeostasis
Homeostasis
body keeps internal balance
Cardiovascular System
Compose by the heart and blood vessels
Function of Cardiovascular System
Dispute carbon dioxide and nutrients to all areas of the body
Lymphatic System
Composed by lymph vessels and lymph tissue
Function of Lymphatic System
Drain of excess interstitial fluid and return it into blood and to provide to your body’s immune defense
Respiratory System
Components nasal passages, pharynx, trachea, lungs, and bronchial tubes
Function of Respiratory System
Mainly gas exchange
Digestive System
Composed of the organs of the gastrointestinal tract
