Exam 1 Flashcards
Types of connective tissue
Bones Cartilage Ligaments Tendons Fasciae
Functions of the skeleton
Support Provide attachments for muscles and tendons Movement Production of RBCs Storage of vitamins and minerals
Muscular system functions
Move or stabilize
Production of heat- regulate body temp
Aid in return of blood from the legs
Osteoblasts
Produce bone matrix during growth and injury
Remember: Baby Bone cells Building Blocks
Osteoclasts
Clean up old cells
Osteocytes
Cycle of bone
Remember OsteoCYtes= CYcle of bone
Compact vs. Spongy Bone
Compact- firm outer layer- forms shaft on long bones, covers and protects spongy bones
Spongy- Made of irregular and sparse osteons, soft inner bone, filled with yellow and red marrow
What are long bones?
Long, muscles that act on them as rigid levers
What are short bones?
Equal in width and length and clued across one another
What are irregular bones?
Neither flat nor long
ex: Pelvis
What are flat bones?
Protect soft organs and are curved
How many bones are in the body?
206
What makes up the axial skeleton?
Skull, hyoid, vertebras and rib cage
What makes up the appendicular skeleton?
Arms, legs, shoulders, pelvic girdles, and synovial joints
How many bones are in the skull/ face
8 cranial
14 facial
What protects the heart, lungs, liver and spleen?
What does it consist of>
Thoracic cage
Consists of sternum, 12 pairs of ribs
Name the sections of the vertebral column and how many vertebra are in each section
Cervical- 7 Thoracic- 12 Lumbar- 5 Sacrum- 5- fused Coccyx- 4, fused
Remember: Cereal, Turkey, Lasagna, Snack, Chocolate/ Candy
Hip bone is also known as?
Os Coxae, provides stability and ambulation
What are synovial joints and what is the function?
Small sacs of synovial fluid
provides cushion and lessens wear on areas of high friction
May become inflamed
Tendons
Made of dense fibrous tissue.
Attach muscle to bone
Ligaments
Made of dense fibrous tissue
attach bone to bone
Antagonistic muscles
Extend, oppose action of another muscle
Synergistic muscle
Balance and fine motor control
What are the three types of muscle?
Cardiac, smooth, skeletal
Where are smooth muscles found?
Walls of hollow structures, airway, arteries, bladder and uterus
Involuntary
Movement is based on neuronal and hormonal influences and O2
Skeletal muscles
Voluntary, contracts based on neuronal stimulation
Requires nerve impulses to contract
Point of origin?
Point of insertion?
origin- point of attachment, unmovable
insertion- point of attachment, moves when muscle contracts
Muscular atrophy?
Muscular hypertrophy?
Atrophy- absence of contraction, results from immobility
hypertrophy- occur with increased muscular activity
Skeletal muscle contraction
Nerve impulse>brain/ spinal cord>skeletal muscle fiber>neuromuscular junction>acetylcholine>muscle contraction
Aging and MS System
Functional problems
Weight-bearing joints subject to damage
Decreased bone density, muscle mass, muscle strength and flexibility
shortening of vertebral column
Risk for falls
Osteoarthritis and osteoporosis- not a normal consequence
Physical Assessment
Health Hx- PMH, surgeries, med use, usual activities, occupation
Inspection/Observation: Posture, Movement, gait, balance, body symmetry, spine- contour, tenderness, warmth, injury
Palpate
Neurovascular assessment
Eval passive and active ROM
Labs for MS System
Calcium - 8.5- 10.5
Uric Acid- 2- 7 >7 indicates gout
ESR- Males up to 15
Females up to 20