MOST TESTED REAL EXAM QUESTIONS AND VERIFIED
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levels of organization:
tissue level
-A collection of cells working together to perform a specific function
-4 basic tissue types
Epithelial, connective, muscle, and nervous tissues
levels of organization:
organ level
Organ: Two or more tissues working together to perform specific functions
levels of organization:
organ system level
Two or more organs working together to perform specific functions
levels of organization:
organism level
all organ systems working together to maintain health
,the integumentary system
-skin
-Protects against
environmental hazards
-Helps control body temperature
-Sensory information
,the skeletal system
-bones
-Provides support
-Protects tissues
-Stores minerals
-Forms blood cells
-calcium is important for muscle function
-body regulate Ca+ if not enough it will take from bones
-axial skeleton: skull and ribs
-appendicular skeleton: limbs
the muscular system
-Allows for movement
-Provides protection and support
-Produces heat when burning energy
-skeletal voluntary muscle
-muscle contract when
cold "shivering"
include: axial muscle, appendicular muscle, tendons
, the nervous system
-Directs immediate
responses to stimuli, usually
by coordinating the activities
of other organ systems
-Provides and interprets
sensory information
-Cognitive functions
-central nervous system: brain and spinal cord
-peripheral nervous
system: peripheral
nerves
the endocrine system
-PRODUCE HORMONES
-Directs long-term changes in activities of other organ systems
-all endocrine glands