1. List some functions of the skeletal system.

Human Anatomy & Physiology (11th Edition)
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1. List some functions of the skeletal system.
6.
Name:
Date:
The Skeletal System - It's Alive!
Crash Course Biology #30
2. Skeletons have multiple forms, including:
a.
b.
C.
skeletons - jellies and worms
- insects and molluscs
- skeleton inside the body
3. Endoskeletons allow animals to grow
4. Adult humans have
bones, including:
tiny ones in each ear
shaped like a horseshoe in your throat
_skull bones
5. What is the study of bones called?
Most new bone tissue starts out as
by supporting more mass.
in your hands
face bones
a. secrete a combination of
b. absorb
form a cartilage model, or framework, for the bones to form on.
Period:
and is made of specialized cells called
These cells divide and secrete collagen and other proteins to
Humans also have at
least 32 teeth, but
they aren't bones!
7. Blood vessels work their way into the cartilage and bring plump little cells called
The bone-building that they do is called
oste- or osteo-
bone
and a polysaccharide
and salts from the blood in all the capillaries around them,
especially calcium and phosphate, and they begin depositing those minerals onto the
matrix
c. With the help of enzymes secreted by the osteoblasts, these chemicals bond to form
calcium phosphate which crystallizes to make your
d. about two-thirds of your bone matrix is proteins, like collagen, and the other third is
a
8. Bones tend to have the same basic structure. The matrix actually forms in two layers
a. outer layer, called the
or cortical bone, is hard and dense and
makes up about 80% of the bone's mass
b. In the middle, the
contains the marrow and fatty tissues in larger bone
or trabecular bone, is softer, and more porous, and
9. The marrow makes almost all blood cells, including new red blood cells, by a process called
Transcribed Image Text:1. List some functions of the skeletal system. 6. Name: Date: The Skeletal System - It's Alive! Crash Course Biology #30 2. Skeletons have multiple forms, including: a. b. C. skeletons - jellies and worms - insects and molluscs - skeleton inside the body 3. Endoskeletons allow animals to grow 4. Adult humans have bones, including: tiny ones in each ear shaped like a horseshoe in your throat _skull bones 5. What is the study of bones called? Most new bone tissue starts out as by supporting more mass. in your hands face bones a. secrete a combination of b. absorb form a cartilage model, or framework, for the bones to form on. Period: and is made of specialized cells called These cells divide and secrete collagen and other proteins to Humans also have at least 32 teeth, but they aren't bones! 7. Blood vessels work their way into the cartilage and bring plump little cells called The bone-building that they do is called oste- or osteo- bone and a polysaccharide and salts from the blood in all the capillaries around them, especially calcium and phosphate, and they begin depositing those minerals onto the matrix c. With the help of enzymes secreted by the osteoblasts, these chemicals bond to form calcium phosphate which crystallizes to make your d. about two-thirds of your bone matrix is proteins, like collagen, and the other third is a 8. Bones tend to have the same basic structure. The matrix actually forms in two layers a. outer layer, called the or cortical bone, is hard and dense and makes up about 80% of the bone's mass b. In the middle, the contains the marrow and fatty tissues in larger bone or trabecular bone, is softer, and more porous, and 9. The marrow makes almost all blood cells, including new red blood cells, by a process called
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