Student Exploration: SensesSE

Our body can detect what things smell, taste, look, and feel like.

Our body uses our eyes, nose, mouth, ears, and skin.

Nerve cells transmit light signals to the brain.

The visual cortex in the brain processes the signals to create the perception of vision

The visual cortex in the brain processes the signals to create the perception of vision.

They detect the molecules in food.

Nerve cells transmit taste signals to the brain.

The Gustatory cortex processes this signal.

The Auditory cortex.

They both lead to a cortex in the brain.

The other stimuli as well and the speaker all go to the Auditory cortex.

There are cases where a signal is processed by more than one brain region because there are things that you can taste and smell, hear and touch, and other combinations. Activated nerve cells transmit touch signals through the spinal cord and back to muscle cells, triggering muscles to move away from the source of pain. This whole process takes place in the spinal cord the signal does not reach the brain at all.

on the top left corner the first box is: the mouth, underneath that is the ears, and underneath that is the nose. On the top right the first one is the skin, and the one underneath that is the eyes.

One pathway goes to the brain and the other goes back to the hand to react.

Back to the hand would be faster and advantageous because the reflex can occur.

Parietal lobe processes hot and cold.

The hand does a shivering motion.

On the top left box fill in lense, on the bottom right fill in retina

The light crosses and hits the Retina.

Cones

From the Optic Nerve to the Thalamus to the Visual Cortex.

The brain interprets the signal into what we perceive as visions.

Gizmos literally shows you these answers sooo you can do that on your own

Sound waves entering the ear travel through the external auditory canal before striking the eardrum and causing it to vibrate. The eardrum is connected to the malleus, one of three small bones of the middle ear. Also called the hammer, it transmits sound vibrations to the incus, which passes them to the stapes.

The hair cells located in the organ of Corti transduce mechanical sound vibrations into nerve impulses.

Where does the signal go after leaving the hair cells?

The signal goes from Brainstem to the Thalamus to the Auditory cortex.

Transformation and processing of sound generally occurs in the auditory cortex.

Pain, Temperature, Light touch, Strong pressure.

Light touch receptors are found at the skin's surface because the pressure caused by light touch sensations is decreased as the layers of skin above the receptors increases.

Signals are sent from neurons in the skin, through the somatosensory nerve to the thalamus, and then to the somatosensory cortex in the brain.

When sent molecules enter the nose, some are captured in the mucus membrane on the roof of the nose, where they come in contact with the olfactory bulb. (From the top the labeling is 4,3,2,1)

Signals are sent from the olfactory bulb to the olfactory cortex in the temporal lobe.

They are responsible for giving the tongue its texture and are responsible for the sensation of touch. (From the top labeling is 1,2,3)

Signals are sent from taste nerves, to the brain stem, then the thalamus, and finally to the gustatory cortex of the brain.

Both smell and taste use chemoreceptors, which essentially means they are both sensing the chemical environment.

Our skin includes touch and temperature receptors, and our inner ears contain sensory mechanoreceptors designed for detecting vibrations caused by sound or used to maintain balance.

Sensory receptors perform countless functions in our bodies. During vision, rod and cone photoreceptors respond to light intensity and color.

The signals for taste, hearing, sight, and touch are processed by the thalamus before being directed to the part of the brain specific to the sense. Touch signals enter the brain through the spinal cord, while signals from other sense organs do not. Only taste and hearing signals are processed in the temporal lobe, and only touch signals terminate in the somatosensory cortex. Olfactory signals bypass the thalamus and are sent directly to the olfactory cortex.