Musculoskeletal System : Chap 4

Bone is known as . . .

osseous tissue

Sinus

A hallow cavity within a bone

What is the “Axial Skeleton”

The central skeleton, torso

How many bones in the Axial skeleton

80

What is the “Mandible”

Lower jaw

How many bones in the Mandible

1

What is the “Cervical Vertebrae”

Neck bones

How many bones in the Cervical Vertabrae

7

What is the “Thoracic Vertebrae”

Rib area

How many bones in the Thoracic Vertebrae

12

What is the “Lumbar Vertebrae”

Lower back

How many bones in the Lumbar vertebrae

5

Sacrum

Triangular bone at lower end of vertebral column

How many bones in the sacrum

1

What is the “Appendicular skeleton”

Any bone off the central skeleton, limbs

What is the “Scapula”

Shoulder blades

How many scapula bones in the body

2

What is the “Clavicle”

Collar bone

How many clavicle bones are in the body

2

What are the Metacarpals

Hand bones

How many bones in the Metacarpals

10 (each hand)

What is the “Femur”

Thigh bone

How many femurs in the body

2

What is the “Tibia”

Shin bone, weight supporting bone of lower leg

How many tibias in the body

2

What is the “Fibula”

Lateral side of lower leg, non-weight supporting

How many fibula bones in the body

2

Synovial

Freely moving

Cartilaginous

Slight movement

Fibrous

No movement

Abnormal Curves of spine : Lordosis

Exaggerated inward curve of the lumbar spine, often leading to a swayback appearance.

Abnormal Curves of spine : Kyphosis

Abnormal outward curve of the thoracic spine, resulting in a hunchback appearance.

Abnormal Curves of spine : Scoliosis

Lateral curvature of the spine, often appearing as an "S" or "C" shape when viewed from the back.

Greenstick

Bone is broken on one side, bent on the other

How many types of muscle tissue are in the body?

3

Skeletal tissue

Moves the bones of the body

Visceral Tissue

Moves the internal organs

Cardiac Tissue

Heart muscle

Septum

Dividing wall, usually consisting of cartilage, between two cavities or structures

Muscle actions : Flexion

Bending a joint / narrowing the angle at a joint

Muscle actions : Extension

Straightening a joint / widening the angle at a joint

Muscle actions : Supination

To turn face up

Muscle actions : Pronation

To turn face down

Fascia

Fibrous connective tissue that covers the muscle and tapers into a tendon