Digestive
It is the site where mechanical digestion occurs.
The mouth or oral cavity.
The exchange of gases between the external environment and the lungs is called ______ respiration.
External respiration.
What layer sits above the dermis and hypodermis?
Epidermis.
Sperm cells and egg cells merge together in a process called _______.
What do red blood cells transport?
Oxygen.
What enzyme does saliva contain that breaks down starch into simpler sugars?
Amylase.
The pharynx is also known as the throat, while the larynx is also known as the ______.
Voice box or vocal cords.
In what layer of the human skin is Vitamin D synthesized?
Epidermis.
The average menstrual cycle is how long?
28 days.
How many chambers does the human heart have?
Four chambers.
No digestion occurs in this part of the digestive system.
Esophagus.
In what part of the respiratory system, gaseous exchange takes place?
Alveoli.
What is the condition where an individual is born or manifests the absence of melanin later in life?
Albinism.
The layer of the uterine wall that is shed during menstruation is the ______.
Endometrium.
The heart is approximately the size of what part of your body?
Fist.
What is the name of the acid that the gastric juices in our stomach contain?
Hydrochloric Acid (HCL aq.)
What part of the respiratory system filters the air we breath?
Cilia.
What is the thickest layer of the human skin called?
Dermis.
Fallopian tubes.
What leaves the blood when it is in the lungs?
Carbon dioxide.
The large intestine primarily absorbs what material from the digested material?
Water.
The windpipe is also called as the ______.
Trachea.
These polymers are responsible for protecting your skin from harmful Ultraviolet (UV rays).
Melanin.
How many spermatids are produced from one spermatogonium?
Four spermatids.
What is the largest blood vessel?
Aorta.