Skeletal
How many bones are found in the average adult human skeleton?
What is the function of the Circulatory System?
Transportation, Protection, and Regulation
What is the function of the Digestive System?
Digestion, Absorption, Elimination
What is the function of the Integumentary System?
Protection, Body Temperature, Sensation
What is the name of the longest and strongest bone in the human body, located in the upper leg?
Femur
Which of the following is the primary organ responsible for pumping blood throughout the entire body?
Heart
Which muscular tube uses a wave-like motion called peristalsis to move food from the mouth to the stomach?
Esophagus
What is the name of the outermost layer of the skin that provides a waterproof barrier and creates our skin tone?
Epidermis
Bones aren't just solid rock; they are living organs. What is the name of the soft, fatty tissue found in the center of many bones that is responsible for creating new blood cells?
Bone Marrow
Which type of blood vessel carries oxygen-rich blood away from the heart to the rest of the body?
Arteries
Where does the majority of chemical digestion and nutrient absorption take place in the digestive tract?
Small Intestine
Which specific protein is found in the skin, hair, and nails, providing them with strength and making them water-resistant?
Keratin
Most bones are connected to other bones by tough, fibrous bands of connective tissue. What are these bands called?
Ligaments
What is the name of the tiny, thin-walled vessels where the actual exchange of gases and nutrients occurs between the blood and body cells?
Capillaries
The liver produces a substance called bile that helps break down fats into smaller droplets. Where is this bile stored until it is needed?
Gallbladder
How does the integumentary system help maintain a constant body temperature (homeostasis) when you get too hot?
By releasing sweat and dilating blood vessels to release heat
In the skeletal system, what is the specific name for the holes in bones that allow nerves and blood vessels to pass through?
Foramina
The human heart has four chambers. Which specific chamber has the thickest muscular wall because it must pump blood to the entire body?
Left Ventricle
The small intestine is lined with tiny, finger-like projections that greatly increase the surface area for absorption. What are these structures called?
Villi
What is the primary function of the sebaceous glands found in the dermis layer of the skin?
To produce oil to lubricate the skin