Anatomy - Chapter 3 Flashcards
What is anatomy?
The science of the structure and function of the body
What parts of anatomy are the most important to fitness?
muscuoletal and circulatory systems
What is included as part of the skeletal system?
bones and joints
What functions does the skeletal system play within the body?
- spreads our weight out from head to foot
- produces red blood cells
- protects the organs and soft tissues
- supports soft tissue
- is a reservoir for minerals including calcium and phosphorus
- is a lever system for body movements
How many bones are in the adult body?
206
How many bones is a baby born with?
300 - many of which fuse together through childhood
What is the Axial skeleton?
it runs through the body’s mid-line and includes 80 bones:
-skull
-ribs
-sternum
-vertebrae
what is the Appendicular skeleton?
126 bones including the upper and lower limbs, pelvis, shoulders and girdle
How many types of bones are there?
6
What are the 6 types of bones?
- long bones - a bone that is longer than thick or wide - femur
- short bones - square and thick; equally long and wide; wrist bone
- flat bones - ribs, skull and pelvis. Purpose is to protect organs
- irregular bones - no other one like it and each is slightly different - vertebrae
- sesamoid - bones embedded with tendons - they develop from birth from our activities - patella (knee caps)
- sutural bones - small and irregular bones - found along the sutures of the cranium
How many bones are in the cervical spine?
7 - C 1-C7
What is the big lumpy bone at the base of your neck?
C7
Where is the cervical spine located on the body?
at the top of the neck area
what is the portion of the spine in the middle of the back between the cervical spine and the lumbar spine called?
Thoracic spine
how many vertebrae are in the Thoracic spine?
12
What part of the spine do the ribs attach to?
thoracic spine
What is the lower part of the spine called?
Lumbar
How many bones are in the lumbar spine?
5 - L1-5
What is the function of the lumbar spine?
supports the weight of the body
What is the function of the thoracic spine?
protects the internal organs
How many bones are in the spine?
35
What is the sacrum?
collection of fused bones at the base of the spine
What is the coccyx?
your tailbone - is a collection of 3-5 bones - the number of which varies by person.
What is the acronym to remember the spine bones?
7 Am - breakfast and cereal “cervical”
12:00 lunch - thoracic
5 PM - dinner
5 PM - sacrum