Skeletal System Flashcards

1
Q

Axial Skeleton

A

Consists of the braincase and the backbone and ribs

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2
Q

Appendicular Skeleton

A

Compromised of the upper and lower extremities, which include the shoulder gridle and pelvis.

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3
Q

Axial Bones

A

Made up of 80 bones. Main bones are the Skull, vertebrate, rib cage, and sternum

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4
Q

Appendicular Bones

A

Made up of 126 bones. Main bones are the pectoral gridle, arms, forearms, hands, pelvis, legs, feet, and ankles

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5
Q

Total bones in the human body

A

206

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6
Q

Long Bone

A

Leverage

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7
Q

Short Bone

A

Provides stability, support, while allowing for some motion

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8
Q

Flat Bone

A

Point of attachments for muscles; protectors of internal organs

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9
Q

Irregular Bones

A

Protects internal organs

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10
Q

Sesamoid Bones

A

Protects tendons from compressive forces

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11
Q

Epiphysis

A

Ends of the bone

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12
Q

Diaphysis

A

Shafts of the bone

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13
Q

Articular Cartilage

A

White smooth tissue that covers the ends of bones in joints

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14
Q

Periosteum

A

A dense layer of vascular connective tissue enveloping the bones except at the surface of the joints

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15
Q

Medullary Cavity

A

The central cavity of bone shafts where red bone marrow/ yellow bone marrow is stored

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16
Q

Red Bone Marrow

A

Stores energy

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17
Q

Yellow Bone Marrow

A

Stores fat

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18
Q

Compact Bone Tissue

A

Main structure in the body for support, protection, and movement

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19
Q

Spongy Bone Tissuehttps://www.brainscape.com/decks/10430066/cards/quick_new_card

A

Stores bone marrow

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20
Q

Flexion/Extension

A

Brings the limb toward the body or across the body or limbs

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21
Q

Abduction/Adduction/Circumduction

A

Abduction moves the limb laterally away from the midline of the body. Adduction Brings the limb toward the body or across the midline. Circumduction is movement of a body region in a circular manner, in which one end of the body region being moved stays relatively stationary while the other end describes a circle.

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22
Q

Rotation

A

can occur within the vertebral column, at a pivot joint, or at a ball-and-socket joint.

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23
Q

Supination/Pronation

A

Supination is the opposite motion, in which rotation of the radius returns the bones to their parallel positions and moves the palm to the anterior facing (supinated) position. Pronation is the motion that moves the forearm from the supinated (anatomical) position to the pronated (palm backward) position.

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24
Q

Dorsiflexion/ Plantar Flexion

A

Movements at the ankle joint, which is a hinge joint. Dorsiflexion is upward, Plantar is downward.

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25
Inversion/ Eversion
Inversion is the turning of the foot to angle the bottom of the foot toward the midline, while eversion turns the bottom of the foot away from the midline.
26
Protraction/ Retraction
Protraction of the scapula occurs when the shoulder is moved forward, as when pushing against something or throwing a ball. Retraction is the opposite motion, with the scapula being pulled posteriorly and medially, toward the vertebral column.
27
Depression/ Elevation
The upward movement of the scapula and shoulder is elevation, while a downward movement is depression. These movements are used to shrug your shoulders.
28
Opposition/ Reposition
Opposition is the thumb movement that brings the tip of the thumb in contact with the tip of a finger. Returning the thumb to its anatomical position next to the index finger is called reposition.
29
Pivot Joint (vertebrae in neck area)
At a pivot joint, a rounded portion of a bone is enclosed within a ring formed partially by the articulation with another bone and partially by a ligament.
30
Hinge Joint (elbow)
In a hinge joint, the convex end of one bone articulates with the concave end of the adjoining bone.
31
Saddle Joint (thumb)
At a saddle joint, both of the articulating surfaces for the bones have a saddle shape, which is concave in one direction and convex in the other.
32
Ball and Socket Joint (hip)
The joint with the greatest range of motion is the ball-and-socket joint. At these joints, the rounded head of one bone (the ball) fits into the concave articulation (the socket) of the adjacent bone.
33
Condyloid Joint (wrist)
At a condyloid joint (ellipsoid joint), the shallow depression at the end of one bone articulates with a rounded structure from an adjacent bone or bones.
34
Plane Joint (between tarsals)
At a plane joint (gliding joint), the articulating surfaces of the bones are flat or slightly curved and of approximately the same size, which allows the bones to slide against each other.
35
How many bones are in the cranium?
22 individual bones
36
What is the only moveable bone in your skull?
Mandible (lower jaw)
37
5 Vertebral Regions
seven cervical vertebrae, 12 thoracic vertebrae, five lumbar vertebrae, five sacral vertebrae, four small coccygeal vertebrae.
38
How many vertebrae are in the cervical?
7
39
How many vertebrae are in the thoracic?
12
40
How many vertebrae are in the lumbar?
5
41
Scoliosis
An abnormal, lateral curvature, accompanied by twisting of the vertebral column.
42
Kyphosis
An excessive posterior curvature of the thoracic region.
43
Lordosis
An excessive anterior curvature of the lumbar region and is most commonly associated with obesity or late pregnancy.
44
What does the thoracic cage protect?
The heart and lungs
45
Costal cartilage
These cartilages are made of hyaline cartilage and can extend for several inches.
46
Three types of ribs
True ribs (7), False ribs (4), Floating ribs (2)
47
Scapula
lies on the posterior aspect of the shoulder
48
Clavicle
articulates with the humerus (arm bone) to form the shoulder joint
49
Pectoral Gridle
Is anchored to the axial skeleton by a single, highly mobile joint.
50
Humerus
The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow.
51
Radius
It extends from the lateral side of the elbow to the thumb side of the wrist and runs parallel to the ulna.
52
Ulna
A long bone found in the forearm that stretches from the elbow to the smallest finger, and when in anatomical position, is found on the medial side of the forearm
53
Carpals
Are the eight small bones that make up the wrist that connects the hand to the forearm
54
Metacarpals
Form the intermediate part of the skeletal hand located between the phalanges of the fingers and the carpal bones of the wrist which forms the connection to the forearm
55
Phalanges
Are digital bones in the hands and feet
56
Femur
Is the proximal bone of the hindlimb in tetrapod vertebrates
57
Tibia
Is the larger, stronger, and anterior of the two bones in the leg below the knee in vertebrates, and it connects the knee with the ankle bones
58
Fibula
Is a leg bone on the lateral side of the tibia, to which it is connected above and below
59
Tarsals
Is a leg bone on the lateral side of the tibia, to which it is connected above and below
60
Metatarsals
A group of five long bones in the foot, located between the tarsal bones of the hind- and mid-foot and the phalanges of the toes
61
Closed fracture
A broken bone that does not penetrate the skin
62
Open fracture
A fracture in which there is an open wound or break in the skin near the site of the broken bone
63
Transverse fracture
Occurs when a bone has broken perpendicular to its the length
64
Spiral fracture
Is a bone fracture occurring when torque is applied along the axis of a bone
65
Comminuted fracture
A breakage of the bone into more than two fragments
66
Impacted fracture
Occurs when the broken ends of the bone are jammed together by the force of the injury
67
Greenstick fracture
A crack or break on one side of a long bone in the arm or leg that does not extend all the way through the bone
68
Oblique fracture
A partial or complete break in a bone