sensory receptors
These special structures in the body respond to changes inside and outside the body and report them to the nervous system
What are receptors?
Light enters the eye through an opening at its center, which is surrounded by this colored part of the eye
What is the iris (or pupil)?
hese two main components make up the central nervous system.
What are the brain and the spinal cord?
These immediate reactions, like a knee-jerk response, send information directly to the spinal cord without involving the brain.
What are reflexes?
True or False: All sensory information must travel to the brain before the body can react.
What is False? (Reflexes go directly through the spinal cord)
Touch receptors on this human body part can detect two distinct points at the shortest distance, showing it has the most refined sense of touch
What are the hands?
Objects can only be seen when light does this off their surface and enters the eye.
What is reflects (or bounces)?
This body system provides structure, support, and protection for the softer brain and spinal cord.
What is the skeletal system?
Many bats navigate and locate food in the dark by emitting sounds that bounce back as echoes in a process called this.
What is echolocation?
These three small bones in the middle ear vibrate to pass sound from the eardrum to the inner ear.
What are the hammer, anvil, and stirrup?
When your skin experiences intense pressure or injury, these specific receptors send signals to the central nervous system to cause your muscles to move away.
What are pain receptors?
his term describes having two eyes seeing the same thing from slightly different angles, giving organisms depth perception.
What is binocular vision?
his organ acts as the central processing center for sensory signals sent throughout the body.
What is the brain?
Bats have tiny sensory structures on these body structures that detect air speed and direction to help prevent stalling during flight.
What are their wings (or wing hairs)?
This fruit-eating animal with large eyes and ears uses its senses similarly to bats to find food and avoid predators.
What is the elephant shrew?
An elephant has 1,948 of these types of receptors in its nose, while humans only have 396.
What are smell receptors?
This is the area at the back of the eye containing specialized light receptors that react to incoming light rays
What is the retina?
Much of your ability to identify specific foods by taste actually depends on this other sense.
What is the sense of smell?
Unlike insect-eating bats, flying fox bats find fruits to eat primarily using this sense.
What is sight?
Taste buds on the tongue react to these five basic flavors: salty, sour, sweet, bitter, and............ flavor.
What is savory?
The tiny hairs inside this fluid-filled part of the inner ear move due to sound vibrations and produce nerve signals sent to the brain
What is the cochlea?
Even though people say "blind as a bat," bats can actually see quite well because their vision is especially sensitive to these light conditions.
What are low-light conditions (or dawn and dusk)?
When sensory information is processed by the brain, it creates these two things, which animals use to guide their future actions.
What are perceptions and memories?
Bats can hear sound frequencies at levels this many times higher than humans can hear.
What is 10 times higher?
predator like a cheetah would struggle to hunt prey at night because of a lack of this needed to reflect off objects into its eyes.
What is light?