Module 11 - Muscular System Portion Flashcards
Osteoblasts
Cells that form new bone
Osteoclasts
Cells that breakdown bone
Red Marrow is in ___ Bones
Flat
Yellow Marrow is in ___ Bones
Long
Long Bones
bones that are longer than they are wide
Flat Bones
thin bones that are often curved, like ribs
Red Marrow
Highly vascularized hematopoietic stem cells
Yellow Marrow
Fat
Short Bones
Bones approximately equal in length, width, and thickness
Irregular Bones
bones like that of the face with no characteristic shape
Compact Bone
dense bone
Spongy Bone
cancellous bones that are light, soft, and spongy in nature filling the inner layer of most bones and forming the epiphyses of long bones
Compact Bones
cortical bones that are heavy, tough, and compact in nature making the outer layer of most bones and forming the diaphysis of long bones
Epiphysis
the end part of a long bone
Diaphysis
shaft or central part of a long bone
Epiphyseal Plate
The area of growth in a long bone (could be interrupted by circulation issues)
Muscles account for ___% of the bodys weight
40-50%
3 Types of Muscles
Cardiac
Smooth
Skeletal
Cardiac Muscle
tissue that involuntarily controls heart movements through specialized pacemaker cells
Smooth Muscle
Involuntary Muscle
Skeletal Muscle
Voluntary Muscle
Tendons
Stabilizers connecting muscle to bone
Ligament
Stabilizers connecting bone to bone
Cartilage
Gel pad between bones offsetting wear and tear and bone erosion
Bursa
Disc shaped sacs filled with a synovial fluid for cushioning
Between bones or tendons/ major joints of the body
Eases friction
Bursitis
Inflammation and irritated synovial fluid composure and joint appearance / Bursa inflammation
Every joint has ____
flexion
Extension
movement that increases the angle between 2 body parts
Flexion
movement that decreases the angle between 2 body parts
Dorsiflexion
action of raising the foot upward toward the shin
Plantarflexion
action in which the top of your foot points away from your leg (opp of dorsiflexion)
Hyperextension
to extend so that the angle between bones of a joint is greater than normal
Abduction
the movement of limb or other parts away from the midline of the body, or another part
AB = Away from Body
Adduction
the movement of a limb or other part toward the midline of the body, or another part
AD = ADd toward
Circumduction
The movement of a body region in a circular manner, where one end of the body remains stationary while the other moves circularly
Internal Rotation
rotation toward the center of the body
External Rotation
rotation away from the center of the body
Pronation
Rotation of a body part toward the midline / Rotation of the hand and forearm so that the palm faces backwards or downwards (palm posterior up)
Supination
Rotation of forearm and hand so the palm faces forward or upward
Inversion
Turn the foot toward the midline of the body
Eversion
Turn the foot away from the midline of the body
TMJ
Temporal Mandibular Joint
A hinge and gliding joint for the jaw
It can retract or protract, retract, elevate, and depress the mandible
What kind of joint is TMJ
Hinge and Gliding
What kind of joint is the cervical spine?
Gliding
Cervical Spine
Gliding joint allowing for flexion, extension, hyperextension, hyperflexion, lateral bending, and lateral rotation
The Thoracic and Lumbar spine allow for what movements?
Flexion
Extension
Hyperextension
Lateral Bend
Rotation
What kind of joint is the shoulder and hip?
Ball and Socket
What sort of movement can shoulder and hip joints do?
Many since they are ball and socket joints - its like a baseball in a glove
Flexion, Abduction, Extension, Adduction, External and Internal rotation
What kind of joints are the elbow and knee
Hinge joints
What sort of movements can the elbow and knee do?
Extension
Flexion
Hyperextension
What kind of joint is the wrist?
condyloid joint
What sort of movements can the wrist do?
Flexion and Extension
Hyperextension
Ulnar and Radial Deviation
Ulnar Deviation
“Ulnar Drift”
Condition where knuckle bones swell and your fingers bend abnormally toward the ulnar (little finger) side
Radial Deviation
conditions where bones swell and your fingers bend abnormally toward the radial (thumb) side
What kind of joints are in the fingers and hands?
Hinge
Saddle
Condyloid
What movements can the hands and fingers do?
Fingers: Abduction/Adduction, Opposition/Reposition
Palmar: Adduction/Abduction
Hyperextension
Flexion
What kind of joints are the ankles?
Hinge
Gliding
Condyloid
What sort of movements can the ankles do?
Mainly dorsiflexion and plantarflexion
The feet can do eversion, inversion, abduction, and adduction
Special Musculoskeletal considerations for infants and children?
Cartilage Ossifies in adolescence
Epiphyses - closure around age 20
Scoliosis (Shoulder, hips) could be possible
Their Birth history is important to know for any issues
Genu varum
Genu valgum
Childhood illness with impact on bone growth
Genu Varum
Bow Leg (Birth issue or hip issue)
Genu Valgum
Knock knee (knees closer and feet apart)
Special musculoskeletal considerations for older adults?
After age 40, loss of bone matrix - Osteoporosis risk increases
Postural changes (Dowagers hump kyphosis, flexion of hips and knees)
Intervertebral disc dehydration
Atrophy of muscle mass and size lading to decreased agility, gait changes, potential balance issues
Greater risk for falls
Why does risk for osteoporosis increase with age?
Osteoclasts increase while osteoblasts decrease causing less formation and more absorption
Special musculoskeletal considerations for prenancy?
Increased hormone level
Increase mobility
Lordosis (r/t hormones)
Resultant upper cervical compensation
Possible pressure on ulnar and median nerves causing numbness and tingling in hands (carpal tunnel)
Lordosis
Inward/concave curve to the lumbar spine
May exaggerate in pregnancy and other areas need to compensate (like the cervical spine)
Information to gather during a musculoskeletal health history?
Musculoskeletal problems, pain, disease
Medications and OTC Meds
Accidents or Trauma
Nutrition
Personal Habits (Smoking and Caffeine)
Activity Limitations
Pain (Time of day, muscle cramping and soreness, bone deep dull throbbing, etc)
Weakness
Stiffness
Caffeine is linked to ____
osteoporosis