BODY SYSTEMS The human body is composed of major systems that have differing functions, but all of the systems work together to maintain homeostasis.

Homeostasis the maintenance of a constant internal state in a changing environment

LEVELS OF ORGANIZATION PHOTOGRAPH PG. 207  Cells form Tissues  Tissues form Organs  Organs form Organ systems

QUESTION  What are the four levels of organization in our bodies?  1.  2.  3.  4.

FOUR KINDS OF TISSUES PHOTOGRAPH PGS. 206 & 207

QUESTION....  What are the 4 kinds of tissues?  1.  2.  3.  4.

Organ Systems photograph pgs. 208 & 209 You will need to know all 11 systems, their functions, and how they work with other systems to maintain homeostasis.

THE SKELETAL SYSTEM PHOTOGRAPH PG 210 main functions:  protection  storage  movement  blood cell formation

QUESTION.....  What are the main functions of the skeletal system?  1.  2.  3.  4.

MUSCULAR SYSTEM - PRIMARY FUNCTION IS MOVEMENT AND FLEXIBILITY. PHOTOGRAPH PG. 214  smooth muscle - involuntary  cardiac muscle - involuntary  skeletal muscle - both  voluntary - in your control  involuntary - not in your control

QUESTION....  What are the 3 types of muscular tissue?  1.  2.  3.  What is are the 2 main functions of the muscular system?  1.  2.

EXCERCISE!!!! Photograph pg. 215 your body needs exercise to stay healthy and maintain homeostasis resistance - weights aerobic - moving

INTEGUMENTARY SYSTEM  protection  feeling (sense of touch)  regulate body temp  gets rid of waste

QUESTION.....  What are the 4 main functions of the Integumentary system?  1.  2.  3.  4.

Respiratory System photograph pg. 248 main function: to take in oxygen and expel carbon dioxide respiration is the process that the body gets and uses oxygen and releases carbon dioxide and water. 1st part is breathing 2nd is cellular respiration How does oxygen get to all of the cells in your body for this process to occur?

QUESTION.....  What is the main function of the respiratory system?  1.  2.

Cardiovascular System photograph pg. 235 function to transport blood, oxygen, and other nutrients throughout your body.

QUESTION  What is the main function of the circulatory system?  How do the cardiovascular and respiratory systems work together?

LYMPHATIC & IMMUNE SYSTEMS main functions.... parts.....  to collect excess fluid surrounding tissues and return the fluid to the cardiovascular system.  protects against disease  lymph nodes  lymphatic vessels  thymus  spleen  tonsils

Digestive system photograph pg. 260 breaks down food into nutrients the body can use dispose of solid wastes

Urinary System photograph pg. produce, store, and eliminate wastes

QUESTION.....  What are the main functions of the digestive and urinary systems?  What do these two systems have in common?

NERVOUS SYSTEM central nervous system - brain and spinal cord Peripheral nervous system - everything else, neuron - specialized to receive and conduct electrical impulses. detects and responds to changes in the environment & transmits information as electrochemical impulses throughout the entire body  Photograph pg. 283

QUESTION.....  What is the function of the nervous system?  How do impulses travel throughout your body?

Endocrine system photograph pg. 297 secretes hormones to regulate body functions & coordinates other organ systems

QUESTION....  What are the two main functions of the endocrine system?  Name two endocrine glands and their functions.

ANIMAL REPRODUCTION asexual reproductionsexual reproduction  a single parent has offspring that are genetically identical to the parent  off spring are formed when genetic information from more than one parent combines

QUESTION.....  How many "parents" are required for sexual reproduction?  How many "parents" are required for asexual reproduction?  Give one example for each.