Neuro
This part of the brain is the "thinking" center and is divided into two hemispheres.
What is the Cerebrum?
This is the primary gas that red blood cells pick up in the lungs to deliver to the body.
What is Oxygen?
This is the hard, protective case made of bone that surrounds your brain.
What is the skull?
This large, flat muscle at the base of the chest is the primary muscle used for breathing.
What is the Diaphragm?
This part of the eye is the colored circle that controls how much light enters the pupil.
What is the iris?
These are the specialized cells of the nervous system that transmit electrical signals.
What are Neurons?
These tiny, thin-walled vessels are where the actual exchange of nutrients and waste happens.
What are Capillaries?
These tough bands of tissue connect muscles to bones.
What are tendons?
This is the "windpipe" that connects the larynx to the lungs.
What is the Trachea?
This is the largest organ of the entire human body.
What is the skin?
During an action potential, the rapid "spike" in membrane potential is caused by the sudden influx of this specific cation.
What is Sodium?
This specific chamber of the heart has the thickest walls because it must pump blood to the entire body.
What is the Left Ventricle?
Adults typically have this many bones in their body, though they are born with about 300.
What is 206?
These are the millions of tiny air sacs where gas exchange actually occurs.
What are Alveoli?
These are the two types of photoreceptors in the retina; one sees color, and the other sees in low light.
What are rods and cones?
In the brain, this structure acts as the "relay station," filtering and directing almost all sensory information to the cortex.
What is the Thalamus?
A person with "Hypertension" is suffering from a chronic high level of this.
What is Blood Pressure?
This is the longest and strongest bone in the human body, located in the thigh.
What is the femur?
This is the flap of cartilage that covers the windpipe while swallowing to prevent choking.
What is the Epiglottis?
The "eardrum" is technically known by this more scientific, "instrumental" name.
What is the tympanic membrane?
This fatty substance, produced by Schwann cells in the PNS and oligodendrocytes in the CNS, allows for saltatory conduction.
What is Myelin?
On an EKG, this complex represents the electrical signal for ventricular depolarization.
What is the QRS Complex?
This mineral is stored in the bones and is essential for bone density and muscle contraction.
What is Calcium?
This substance, produced by Type II Alveolar cells, reduces surface tension to prevent the lungs from collapsing.
What is Surfactant?
his term refers to our "sixth sense", the ability to sense the position and movement of our body parts without looking at them.
What is Proprioception?