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This Week's Anatomy Quiz
Answer:
b) Heart
The respiratory system enables your body to take in oxygen and remove carbon dioxide. The trachea, or windpipe, acts as the main airway, carrying air from the nose and mouth into the lungs, where it branches into the bronchi. These tubes direct air into each lung, ensuring oxygen reaches the deeper parts of the respiratory system.
Fun fact: Your left bronchus is narrower and longer because it has to curve around the heart, which slightly tilts into the left lung space.
Anatomy Quiz Archive
Answer:
a) Jejunum
The jejunum is the middle section of the small intestine, located between the duodenum (first) and the ileum (final). It plays a critical role in digestion by absorbing nutrients like sugars and amino acids from food. Its inner walls are lined with circular folds and tiny hair-like projections called villi for better absorption.
Fun fact: The jejunum makes up about 40% of the small intestine — it’s packed into your abdomen and could stretch to about 8 feet when uncoiled.
Answer:
a) Cervical
Located in the neck, the cervical spine is the uppermost part of the spinal column. It supports your head, protects your spinal cord, and allows for a wide range of head and neck movement. However, despite its flexibility, the cervical spine is also highly vulnerable to injury due to its location and mobility.
Fun fact: Both humans and giraffes have the same number of cervical vertebrae: seven. (Giraffes’ neck bones are just much longer!)
Answer:
a) Heart rate
An ECG (electrocardiogram) records the electrical signals in your heart that trigger heartbeats. Each heartbeat produces a wave pattern, and the ECG can track the timing between waves, thus calculating your heart rate.
Fun fact: While a normal resting heart rate typically ranges from 60 to 100 bpm, athletes can have lower rates due to stronger heart efficiency — as low as 30 bpm!
Answer:
c) Pituitary gland
This pea-shaped endocrine gland sits behind the bridge of your nose, below the hypothalamus; it’s responsible for the production and release of several hormones that contribute to important bodily functions, including growth, metabolism, and response to stress.
Fun fact: The pituitary gland is often referred to as the “master” gland because it controls the function of many other glands in the endocrine system.