Receptors
5 Senses
Vocabulary
Weird Trivia
My Brain
100
What is the function of a photoreceptor?
They are specialized cells responsible for converting light into signals that are sent to the brain.
100
You walk into a house and smell a musty odor. The residents of the house do not smell it. Why not?
Because olfactory receptors are quick to adapt.
100
Define Gray Matter
Collection of neuron cell bodies
100
What does the average brain weigh?
3 pounds
100
The brain is divided into 2 parts by the longitudinal fissure. What do we call those parts?
Two Hemispheres
200
What is the job of a nociiceptor?
Nociceptors respond to potentially harmful stimuli within viscera, bones, muscles, skin and specialized sensory organs.
200
What types of papillae are found on the tongue? There are 4. Name 2 of them.
circumvallate p.
filiform p.
foliate p.
fungiform p.
200
Define Decussation
A cross over of neurons from left to right side of the CNS
200
What is the longest nerve in the human body? Name it for an extra 50 points.
The longest nerve of the human body is the sciatic nerve where the length can exceed one meter.
200
Name this part of the brain
300
What is a somatic receptor?
Sensory receptors in the skin, muscle and tendon.
300
Name 5 taste sensations.
Sweet, salty, sour, bitter, and umami
300
What is a hormone?
Hormones are chemical that act like messenger molecules in the body. After being made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work.
300
How many neurons is in the brain of an average adult
100 Billion neurons
300
Name this part of the Brain
400
The PNS is divided into two divisions, name those divisions.
They are the efferent and afferent divisions.
400
What are the 3 regions of the inner ear?
vestibule
semicircular canals
cochlea
400
What are the two hormones secreted by the pancreas?
Insuline and glucagon
400
How many taste buds on the average tongue?
8000 - each with 100 cells
400
What are the 3 functions of your nervous system (in order)?
1. Receive sensory input from its external and internal surroundings.
2. It processes and interprets this data
3. It produces a response to the information.
500
Name all 5 sensory receptors.
Mechanoreceptors
Thermoreceptors
Photoreceptors
Chemoreceptors
Nocicceptors
500
Name 3 structures of the eye and their functions.
answer may vary - page 64
500
There are 10 Endocrine glands name 5 of them
Answers will vary page 318
500
How many times does a person blink in a minute?
Your eyes blink around 20 times a minute. That’s over ten million times a year!
500
When someone is suspected to have had a stroke we so a test called F.A.S.T - what does this acronym stand for.
Face
Arms
Speech
Time