Cardiovascular System
What is the function of the Cardiovascular System?
What is the study of bones called?
Osteology
What are the two main organs of the nervous system?
Brain & Spinal Cord
What is the largest organ?
Skin
What is the function of the respiratory system?
To inhale oxygen into the bloodstream
True or False:Blood turns blue when deoxygenated
False; It's a myth
What is the largest bone in the body?
Femur
How many neurons are there in the brain?
About 86 billion
What gives color to the skin?
Melanin
True or False:A person can survive with one lung
True
What are the three types of blood cells?
Red blood cells, white blood cells, and platelets.
What type of cells do the bones produce?
Red blood cells
What does PNS stand for?
Peripheral Nervous System
What protein makes up most of your hair and nails?
Keratin
What is the diaphragm?
The primary muscle of respiration.
What is the function of white blood cells?
It helps fight off diseases
There is one bone that is not connected to the rest; what is it called?
What is the brain cells called, and what are the types of it?
The brain cells are called Neurons. The three types of them are called:
Sensory Neuron- Allows you to process pain, temperature, etc.
Motor Neuron- They control all voluntary and involuntary movements.
Interneurons- They help process, store, and integrate information. Ex: a reflex
What is the function of the skin?
It acts as a physical barrier against environmental threats, regulates internal body temperature, prevents dehydration, and contains sensory receptors.
What does someone exhale?
Carbon Dioxide
What are capillaries?
The thinnest and smallest blood vessels. When you get a paper cut, you would bleed from a capillary.
What hormone does the skeletal system produce?
Osteocalcin
What is the difference between PNS and CNS?
PNS-Processes information, makes decisions, and stores memories
CNS-Relays signals between the CNS and limbs/organs
What are the three main layers of the skin?
Epidermis: The outermost layer. It acts as a waterproof barrier, and protects against the outside environment.
Dermis: The middle layer. It contains, nerves, blood vessels, hair follicles, and sweat glands.
Hypodermis: The deepest layer. It's the fatty layer that nsulates the body, cushions organs, and connects the skin to underlying muscles and bones.
What is the trachea?