Nursing-Skeleton
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| How many bones in total | 206
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| What’s the smallest bone in the body? | The stapes is a stirrup-shaped bone, and the smallest in the human body.
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| The patella is located in the: | knee
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| What’s in the center of a bone? | Bone marrow
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| Your bones will stop growing by the time you’re: | 25
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| How many bones are in the spine? | 33 **
Cervical (neck) 7 labeled C1 to C7 **
Thoracic (mid-back) 12, labeled T1 to T12 **
Lumbar (lower back) 5 or 6 labeled L1 to L5 or L6 **
Sacrum (pelvis) â5 fused S1 through S5 **
Tailbone, known as the coccyx, containing 3 fused vertebrae
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| The rib cage protects | heart, lungs, liver
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| What is the function of the skeletal system? | support the body *
give the body shape *
work with muscles to move the body*
stores calcium and phosphorus*
Blood cell production*
protection*
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| Longest bone | femur
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| Plantar Flexion | – Bending of the toes downwards and so arching the foot,
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| Inversion | – Turning the sole of the foot inwards,
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| Supination | – Turning the hand palm facing upwards,
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| Circumduction | – Containment of movements to moving within a circle,
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| Hyperextension | – Over extending the joint beyond its normal straight position,
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| Extension | – Increase in the angle of a joint,
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| Eversion | – Turning the sole of the foot outwards,
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| Flexion | – Decrease in the angle of a joint; a bending movement,
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| Adduction | – Towards the midline,
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| Pronation | – Turning the hand palm facing downwards,
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| Dorsiflextion | – Bending backwards of the fingers or toes ie upwards,
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| Abduction | – Away from the midline
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| Smooth Muscle | – Is usually found in the walls of the viscera and is involuntarily controlled,
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| Skeletal Muscle | – Is attached to the bone and is voluntarily controlled.,
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| Cardiac Muscle | – Is only found in the heart where it helps to pump blood throughout the body.
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| Atrophy | – Muscle wasting away or decreasing in size due to underuse,
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| Hypertrophy | – Overused muscles increase in size,
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| Contracture | – Muscles that are immobilised for a prolonged period of time freezes the muscle and restricts the joint movement
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| What are the four classifications of bones in the skeletal system? | Flat bones – Bones of the cranium,
Short bones – Bones of the wrist and ankle,
Irregular bones – Bones of the vertebrae,
Long Bones – Bones of the thigh, leg, arm and forearm
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| What are the differences between isometric contraction and isotonic contraction? | Isometric Contraction – Muscle contraction that doesn't cause movement,
Isotonic contraction – Muscle contraction that causes movement
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| The shaft of a long bone is called the | Diaphysis
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| Osteoclasts | destroy bone matrix
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| Fat is stored in | yellow bone marrow
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| All of the following are bones of the thorax EXCEPT Select one: a. clavicle b. false ribs c. true ribs d. sternum | clavicle
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| The pectoral girdle or shoulder girdle consists of the | clavicle and scapula
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| The bone of the upper arm is the | Humerus
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| A sarcomere | a. has striations
b. gets shorter when it contracts
c. is a section of a myofibril
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| During muscular contraction | a. ATP supplies energy
b. actin and myosin filaments slide past each other
c. calcium ions (Ca++) are involved
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| At a neuromuscular junction | a neurotransmitter causes calcium to be released into the muscle cell and a nerve impulse causes the release of a neurotransmitter.
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| Which is NOT a function of muscles? | absorb nutrients
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| A skeletal muscle cell is | light and dark bands (striations)
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| The functional unit of a muscle fiber is the | Sarcomere
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| Muscle fatigue is due, in part, to the accumulation of | Lactic Acid
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| The skeleton is made up of 2 skeletal frameworks | The Axial Skeleton consists of the cranium, and the thoracic sections while the Appendicular which consists of all of the limbs of the human body.
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| Role of a Synovial membrane | The Synovial membrane lines the joint capsule and contains the synovial fluid. Synovial fluid lubricates the bones in the joint, therefore decreasing the friction within the joint. Synovial fluid has a thick consistancy similar to that of an egg white
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| What are Sinuses? | Air filled cavities located in several bones of the skull. 1. Lessen weight of the skull 2. Modulate sound of the voice
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Created by:
Abraham321
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