Integumentary System
Nervous System
Muscular System
Skeletal System
Fun Facts
100
The base of the hair shaft
What is the 'hair bulb'?
100
List the branches of the nervous system
Central nervous system, peripheral nervous system, and autonomic nervous system
100
What are the 2 types of attachments?
Tendons and fleshy attachments
100
List the functions of the skeletal system
Support, protection, muscle attachment, mineral storage, homeostasis
100
How many bones are there in the adult human body?
206
200
List the functions of the skin
Homeostasis, protection, water retention
200
This brain region helps control your breathing, heart rate, and blood pressure
What is the medulla oblongata?
200
The ability to respond to a stimulus
What is excitability?
200
List the 4 types of bone cells
Osteogenic cells, osteoclasts, osteoblasts, osteocytes
200
The strongest muscle in the human body
What is the masseter (jaw muscle)?
300
These two proteins found in the epidermis provide skin with its color and waterproof qualities
What are keratin and melanin?
300
A quick response to a stimulus, usually an unconscious reaction
What is a reflex arc?
300
The contractile unit of muscle
What is a sarcomere?
300
The main protein found in bone
What is collagen?
300
The hardest substance in the human body
What is tooth enamel?
400
Identify the indicated portion of the diagram
Sebaceous Gland
400
The number of cranial nerves found in the brain
12
400
What are the contractile proteins that make up a muscle fiber?
Actin and myosin
400
The type of fibrous joint that forms between two flat bones of the skull
What is a synovial joint
400
What percentage of the liver can be removed and it will still regenerate?
75%
500
The deepest layer of your skin composed of fat cells and connective tissue
what is the subcutaneous layer?
500
This area of the brain functions in speech production
What is Broca’s area
500
List the 3 types of muscle fibers
Type 1(slow twitch fibers), Type 2A (fast oxidative), Type 2B (fast glycolytic)
500
Describe the healing process of a bone fracture
The healing process for a bone fracture starts with the formation of a blood clot, followed by the development of a soft callus which gradually transforms into a hard callus during the reparative phase. Osteoclasts and osteoblasts remodel the hard callus, reshaping the bone.
500
The longest nerve in the human body
What is the sciatic nerve?