Skeletal System
Joints
Muscular System
Functions and Structure
Ms. Robbins Choice
100

This type of cell is critical in the regeneration of bone through bone remodeling by absorbing bone tissue where it is not needed or is degenerating

What are Osteoclasts?

100

The connective tissue that attaches bone to bone

Ligaments

100

This muscle classification describes the muscle most responsible for producing a certain movement

Prime movers

100

List 3 functions of the muscular system

Movement, maintain posture, stabilize joints, generate heat, guards entrances/exits

100

This is the name for the movable bone during a muscle contraction

Insertion point

200

List the 4 bone classifications

Long bone, short bone, flat bone, irregular bone
200

This type of joint connects bones with dense connective tissues and a fluid filled joint cavity

Synovial Joints

200

List the 3 types of muscle tissue

Cardiac, Smooth, Skeletal

200

List the 3 structural types of joints

Fibrous, cartilaginous, synovial
200

This type of contraction causes a change in the length of the muscle

Isotonic

300

This is the basis structural unit of bone. Seen in compact bone only.

What are osteons

300

List 4 of the 6 synovial joint configurations (types of movements)

Gliding, hinge, pivot, condylar, saddle, ball and socket
300

This organelle makes up most of the muscle cells

Myofibrils

300

List 4 of the 6 functions of the skeletal system

Support, Protection, Movement, Storage, Blood Cell Formation, Hormone Production

300

This is how long bone repair can take

4 months - 1 year

400

This section of bone have trabeculae, which help the bone resist stress. This section also houses the bone marrow

What is the spongy bone?

400

This structural classification connects bone with cartilage. It can be rigid but is slightly movable

Cartilaginous joint

400

This activates/stimulates muscle contractions

Somatic motor neurons in the nervous system

400

List 3 of the 6 special features of synovial joints

1. Articular cartilage

2. Joint Cavity

3. Joint capsule

4. Synovial fluid

5. Ligaments

6. Sensory nerve fibers/blood vessels

400

Muscle fibers bundle together to form __________. The ________ are bundled together to form the muscle organ.

Fascicles

500

Define ossification. What is the difference between intramembranous ossification and endochondral ossification?

Ossification: The process of bone tissue formation

Intramembranous - bone develops from a fibrous membrane

Endochondral - Bone develops by replacing cartilage

500

List the 3 functional classifications and state how much movement they allow

Synarthroses: No movement

Amphiarthroses: Slight movement

Diarthroses: Freely moving

500

Define "Sarcomere". What are the two types of filaments?

Sarcomere is the contractile unit of the muscle. There are thick filaments (myosin) and thin filaments (actin)
500

List the 3 types of connective tissue that wraps around different parts of the muscle to support it

1. Epimysium - wraps around entire outside of muscle

2. Perimysium: Surrounds each fascicle

3. Endomysium: Surrounds each muscle fiber

500

Give an example of a fibrous joint

Joints in skull (sutures)

Syndesmoses between fibula and tibia in lower leg

The way teeth are embedded in sockets (gomphoses)

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