Skeletal System
The number of bones in the human body
206
When you don't have control over a muscle movement (give an example)
Involuntary (Example: Digestion)
Purpose of the respiratory system
Breath in new oxygen and making sound
What is the doctor testing when they hit your knee with the hammer?
reflexes
The smallest unit of life
A cell
connects bones to bones
ligaments
When you have control over a muscles movement (bonus: give an example)
Voluntary: running, singing
Where is most of the respiratory system located?
head and chest
Signals that give your body messages on how to act
Organs that work together to do a job
organ systems
The biggest bone in your body
femur-in your leg
Connects bones to muscles
tendons
Body part that helps get fresh oxygen into blood
alveoli
What makes up the peripheral nervous system running through your whole body
nerve cells
Tissues that work together to do a job
an organ
Bone marrow
The 3 types of muscles in our bodies
Smooth, skeletal, cardiac
This part of the body help you speak, sing, and make sound
larynx
Main parts of the central nervous system
Brain and spine
cells that work together to do a job
tissues
5 purposes of bones
safety, support, calcium, marrow, movement
When one muscle _________ the other extends
Contracts
Which gasses are exchanges through respiration?
oxygen in, CO2 out
Where reflexes originate from
The spinal cord
how many body systems are there? (Bonus name the 4 we've studied so far)
11-Muscular, Skeletal, nervous, respiratory