All About Skin
Skeletal System
Mircoscopic Bone Structure
Specialized bone cells
Axial and Appendicular skeleton
100

What is the integumentary system?

The skin and its appendages.

100

How many bones are in the human body

206

100

What is a cylinder of compact bone called? 

osteon 

100

What are osteocytes? 

Mature bone cells make up the majority of the bone structure

100

How many bones are in the Axial Skeleton, and what are they?

Skull, ribs, sternum, and vertebrae (80)

200

What are the main functions of the skin?

regulates body temperature, supports immunity, absorbs vitamin D, and enables sensation 

200

What are the 5 function of the skeletal system? 

Support, Protection, Movement, Manufacturing, Storage

200
What are the concentric circles called within the osteon? 

lamellae

200

What are canaliculi, and what do they do? 

they connect bone cells together, and allow them to recieve nutrients and remove wastes
200

How many bones are in the Appendicular Skeleton, and what are they? 

Pec and Pelvic gerdles, arms, legs, shoulders, and with 126

300

What's the top layer of the skin called? 

Epidermis

300

What is the process of blood making called? 

hematopoiesis 

300

What is the hole called in the osteon? 

Haversian canal

300

Where are osteoclasts and osteoblast located? 

Found in the Haversian canals and surfaces of the compact & spongy bone

300

What 5 sections is the spine made of? 

Cervial, Thoracic, Lumbar, Sacrum, and Coccyx

400

What protects the body from UV radiation? 

Melanocytes 

400

What is the end of a long bone called? 

epiphyses

400

What are the centeral canals called within the bone?

perforating (Volkmanns) canal 

400

What do osteoblasts do? 

Produce new bone 

400

What are between the vertebrae and provide shock and cushion?

Interverterbral discs

500

How does the skin help protect the body from infection?

the skin protects against water and pathogens, supports immunity (antibodies, lysozymes, Langerhans cells), enables sensation (pain, temperature, touch), and helps regulate body temperature through sweating and blood vessels.

500

What is the shaft of a long bone called? 

diaphyses

500

What is this system called? 

Haversain system 

500

What do osteoclasts do? 

break down bone

500
What does the spine do later on in life? 

It develops to distribute your body weight better

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