Ø Homeostasis: state of balance
Ø Sequence: cells, tissues, organs, body systems, human body as a whole
Structural organization of the body
Ø Cells
Ø Cell membrane
Ø Cytoplasm
Ø Organelles
§ Nucleus
§ Mitochondrion
§ Lysosome
§ Golgi bodies
§ Centrioles
§ Endoplasmic reticulum
§ Vacuole
Tissues
· Epithelial (covering internal/ external)
· Connective (keeps things together)
· Nervous
· Muscular
§ Skeletal
§ Smooth (visceral)
§ Cardiac
Body Planes
· Midsagittal (medium or midline)
· Frontal plane (coronal)
· Transverse plane
Directional Terms Table 6-1
Body Cavities (know the organs in each cavity)
· Posterior (dorsal) body cavity
§ Cranial cavity
§ Spinal cavity
· Anterior (ventral) body cavity (organs in cavities)
§ Thoracic cavity
§ Abdominal cavity
§ Pelvic cavity
Abdominal Descriptions (nine regions)
· Epigastric (top center)
· Right and left of hypochondriac
· Umbilical (middle center)
· Right and left lumber regions
· Hypogastric (lower center)
· Right and left iliac (hip bone)
Review figure 6-8
Abdomen divided into quadrants
· Right upper quadrant (RUQ)
· Right lower quadrant (RLQ)
· Left upper quadrant (LUQ)
· Left lower quadrant (LLQ)
Review figure 6-9
Chapter #7
Anatomy and Physiology
After each body system, please review the Preventive Measures.
Terms to know
¨ Anatomy
¨ Physiology
¨ Diseases
¨ Pathophysiology
¨ Etiology
¨ Signs and symptoms
¨ Objective
¨ Subjective
¨ Syndromes (aids)
¨ Diagnosis
¨ Treatment
¨ Prevention
¨ Prognosis
¨ Wellness
¨ Illness
Three levels of prevention
Hypertension: monitor own blood pressure bc it may be high
§ Primary
· Prevent initial occurrence
· Secondary
· Treat conditions quickly
§ Tertiary
· Rehabilitate
Genetics
Table 7-1 Organ Systems of the Body
Systems for movement and protection
· Skeletal
· Muscular
· Integumentary (skin)
Skeletal system provides framework that
· Gives shape to body
· Provides places for muscles to attach for movement
· Protects internal organs
· Stores minerals
· Manufactures blood cells
Bones
§ Long bones
§ Short bones
§ Flat bones
§ Irregular bones
Bone Structure Fig. 7-2
§ Medullary canal
§ Diaphysis
§ Epiphysis
§ Periosteum
§ Cartilage
Two major parts of the skeletal system
§ Axial skeleton (shorter name less bones)
§ 80 bones
§ Appendicular skeleton (longer name more bones)
§ 126 bones
The mandible is the only part of cranial skeleton
Also the 2 Soft spots on baby’s head are moveable at birth
Cervical (7) thoracic (12) lumbar (12) (breakfast at 7 lunch at 12 dinner at 5)
Review pages 134-137
Figure 7-3 and 7-5
Joints
§ connection between bones that allows for movement
§ covered by synovial fluid
§ allows joint to move freely
§ ligaments
§ fibrous connective tissue that connects one bone
to another
§ bursa
§ small fluid filled sac
§ serves as a cushion
§ prevents friction between moving parts
active ROM: move body on own
passive ROM: someone else having to move the body (paralyzed or sickness)
Review figure 7-6
Movements of joints (table 7-2)
Major disease and disorders
§ Arthritis
§ Back pain
§ Carpal syndrome
§ Excessive curvature of the spine
§ Scoliosis
§ Lordosis (lumbar curve)
§ Kyphosis (humpback)
§ Fractures Fig.7-8
§ Osteomyelitis
§ Osteoporosis
Muscular Fig. 7-9
· Consist of over 600 muscles
· Provide movement
· Provide support
· Produce heat
Types of muscles
· Cardiac
· Skeletal
· Smooth (visceral)
· Sphincter (dilator)
Characteristics
· Contractibility -tightening
· Excitability- ready to respond
· Extensibility-ready to stretch
· Elasticity-return back to normal
TERMS
Tendons- attach muscles to bone
Ligaments- attaches bone to bone
Fascia- membrane that covers, supports, and separates muscles
Skeletal muscles work in pairs
Prime movers- produce movement in one direction
Antagonist - produces movement in the opposite direction
Muscle tone - is muscles normal resistance to stretching
Spasticity - is too much muscle tone (build up of lactic acid)
Atrophy - muscle shrinks from lack of use
Contracture – shortened muscle holds joint in flexed position
Major diseases and disorders
· Contractures
· Gangrene
· Muscle spasms (cramps)
· Muscle sprain
· Muscular dystrophy
· Myasthenia
Integumentary system
· largest organ of the body
· 15% of total body weight
· provides protection
· responds to heat, touch, cold, pain, and pressure
· controls body temperature through sweating and narrowing and widening blood vessels
Skin
· layers of the skin
§ epidermis
§ dermis
§ subcutaneous tissue (adipose tissue/ fat)
· appendages
§ hair (dead tissue)
§ nails (dead tissue)
§ sudoriferous (sweat) glands
§ sebaceous (oil) gland
Major diseases and disorders
· Athlete’s foot- (infected by fungus)
· Boils (furuncle)- (bacterial infection) (mercer)
· Cancer of the skin
§ Basal cell
§ Squamous cell
§ Melanoma (worst)
· Cellulites – (bacterial infection of dermis and subcutaneous)
· Decubitus ulcers (bed or pressure sores)
· Dermatitis s
Psoriasis – overproduction of skin