Skeleton Quiz

Created by kfpugs829 

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This is for my science quiz on skeleton and the body.

1. What is osteoporosis and what does it do?

Osteoporosis is severe bone loss. This is very unhealthy and dangerous because the bone becomes brittle and easily fractures.

2. Describe the structure of bone.

Bones are made of a hard outer covering of compact bone, which surrounds the inside spongy bone. Cavities in the spongy bone are filled with soft tissue, and this tissue is called bone marrows. The bone is then surrounded and protected with a hard exterior called the eriostemon.

3. What makes up the axial skeleton? And the appendicular skeleton?

The axial skeleton contains bone of the skull, spine, ribs, and sternum, while the appendicular skeleton contains bones of the arms, legs, pelvis, and shoulder.

4. What are the differences between the four different types of tissue?

Epithelial Tissue is tissue that lines most body surfaces, and it protects other tissues from dehydration and physical damage. Nervous Tissue makes up the nervous system and consists of nerve cells and their supporting cells. They carry information throughout the body. Connective Tissue is tissue that supports, protects and insulates the body. It includes fat, cartilage, bone, tendons, and blood. Muscle Tissue is made of three kinds that enable the movement of body structures by muscle contraction. The three kinds are skeletal, smooth, and cardiac muscles.

Epithelial Tissue

tissue that lines most body surfaces, and it protects other tissues from dehydration and physical damage

Nervous Tissue

makes up the nervous system; consists of nerve cells and their supporting cells; they carry information throughout the body

Connective Tissue

this tissue supports, protects and insulates the body; includes fat, cartilage, bone, tendons, and blood; some are densely packed, others far apart

Muscle Tissue

there are three kinds that enable the movement of body structures by muscle contraction; the three kinds are skeletal, smooth, and cardiac muscles

Body Cavities

the body contains four large fluid-filled spaces; house and protect the major internal organs

Axial Skeleton

out of the 206 bones in the body, 80 form the axial skeleton; this includes the skull, spine, ribs, sternum

Appendicular Skeleton

the other 126 bones include arms, legs, pelvis, shoulder; this forms the appendicular skeleton

Bone Marrows

cavities in spongy bone are filled with soft tissue called bone marrow

Periosteum

bones are surrounded and protected by a tough exterior membrane called the periosteum

Haversion Canals

in compact bone, new bone cells are added in layers around narrow, hollow channels called haversion canals

Ostecytes

bone cells, which become embedded within the bone tissue

Osteoporosis

severe bone loss leads to this condition, which means "porous bone"; bones become brittle and easily fracture

Joint

the location at which two bones meet

Ligaments

the bones of a joint are held together by strong bands of connective tissue called ligaments

Tendons

most skeletal muscles are attached to bones by strips of dense connective tissue called tendons

Flexor

this causes a joint to bend

Extensor

this causes a joint to straighten

Actin

a protein filament enables muscles to contract; usually found in the cytoplasm of eukaryotic cells

Myosin

a protein filament enables muscles to contract; usually found in the cytoplasm of eukaryotic cells

Myofibrils

each muscle fiber contains small cylindrical structures called myofibrils

Sarcomere

the area between two Z lines is a sarcomere

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