Hearing
What are the three parts of the ear?
The outer, middle, and inner ear.
What are the three layers of the eye?
The Sclera, Retina, and Choroid.
What are taste buds and what is their function?
Taste buds are the taste receptors on our tongue and they detect flavours of food.
Complete the sentence: “The nervous system consists of the organs that ____ and ____ all the actions we perform
The nervous system consists of the organs that coordinate and control all the actions we perform.
What does the skeleton do?
The skeleton supports the body and gives it shape. It protects our internal organs and allows us to move.
How does sound reach the Pinna?
Sound travels as waves through the air, entering the Pinna and traveling through the ear canal. It then reaches the middle ear.
What part of the eye is sensitive to light?
The Retina
What are the 5 types of taste receptors?
Sweet, salty, sour, bitter and umami.
The central nervous system has 4 interconnected organs, what are their names?
The cerebellum, cerebrum, brainstem and spinal cord.
What function do tendons have?
Tendons are like the glue: they attach the bones to the muscles. They are strong cords that are located at the end of each muscle.
How do we measure the loudness of a sound?
We measure loudness as decibels.
This jelly like substance makes the eye round in shape. What is it?
The vitreous humor is the part of the eye that is a jelly like substance and makes the eye round in shape.
Why can we not taste food when we have a cold?
Because we cannot smell (our nose is blocked), and when we cannot smell we cannot taste our food very well.
When does the nervous system rest?
The nervous system rests when we sleep.
What is a joint and what flexible material is between our joints?
Joints are places where our bones connect. Between our joints, is a flexible material called cartilage
Complete the sentence: The sense of ____ is linked to the inner ear. This sense makes us aware of our body and its movements.
The sense of balance is linked to the inner ear. This sense makes us aware of our body and its movements.
What protective element of the eye is responsible for creating tears and for keeping the eye moist?
The Lacrimal glands.
How many taste buds can a human have?
Humans can have between 2,000 to 10,000 taste buds.
How many neurons group together to form a nerve?
Thousands of neurons group together to form a nerve.
What are muscles and how do they help our bodies?
Muscles are the structures that allow us to move our skeleton.
How many tiny bones are behind the eardrum and what are their names?
The three tiny bones are: the Hammer, Anvil and Stirrup.
What does it mean for something to be transparent? Name the two parts of the eye that are transparent.
Transparent means that you can see through something. Example water. The two parts of the eye that are transparent: The Cornea and the Lens.
What is the olfactory epithelium and where is it located?
It is a membrane where our smell sensors (olfactory receptors) live in our face.
Explain how a nerve signal circulates through a neuron:
Nerve signals pass into the neuron through the dendrite and leave through the axon. The axon of a neuron connects with other dendrites of a neuron next to it.
What characteristics do bones have? What does it mean to be porous?
The characteristics of bones are that they are hard, rigid, and porous. Porous means they are light and full of small holes and empty spaces.