Eye Dissection Analysis

From the outside (anterior) in!
From an anterior view of the eye you can see three main things: the cornea, the sclera, and fatty tissues. The fatty tissue supports and cushions the eye. The sclera or "the white of the eye" that acts as a tough protection from injury, and provides attachment for the  muscles that control and move the eye. The cornea is considered the eyes outer most lens and also provides protection,while controlling and focusing the entry of light. Underneath these outer structures lies the: pupil, iris, lens, vitreous humor, ciliary bodies, and suspensory ligaments. The pupil is the focal point of the eye, and the size of the pupil determines how much light is to enter the eye. The iris is the colored part of the eye and it works with the pupil to help control light entry. The lens is like the focus button on a camera, it works to create clear images of objects from various distances. The vitreous humor is the large sack attached to the lens. This gelatinous structure provides shape and size to the eye. The ciliary bodies is a structure in the eye that release  clear liquid called the aqueous humor. The suspensory muscles connect to ciliary muscle and help shape the lens and hold it in place. Then theres the retina: a thin layer of tissue on the back of the eye. The retina is where light is received and transformed into signals for the brain which creates the image. Then there is also the blindspot which is where the optic nerve reaches the inside of the eye. This tiny area does cannot be seen but humans make up for it with their other eyes. Then, finally, there is the optic nerve which is where all nerve signals are received from the retina and transmitted to the brain for imaging. Lots of terms that can be visualized below!
Looking through the back of the eye to see the thin opening in the center or the pupil

the retina and blindspot of the left and the vitreous humor on the right

the lens attached to the vitreous humor!

Clay Brain

IN this activity my lab group created two clay models of the brain. On the left it is a side view and on the right it is a view of the outside! We named various lobes and structures that can be seen on our labels and through our key!

Hole in the Brain

The article, "The Woman with a Hole in Her Brain", describes a rare condition found in a 24 year old woman where the individual was missing a part of her brain: her entire cerebellum. She never knew she was missing her cerebellum until a CAT scan made it perfectly clear. As a child she struggled with learning to walk and talk and developed these skills later than most children. The cerebellum is the known as the "little brain" and contains 50 percent of the brains total neurons and controls voluntary movement and balance, which explains the poor coordination during the woman's childhood. This woman case, though rare and slightly confusing, shows how adaptable the brain is as an organ and how people can evolve to survive. 

Missing parietal lobe?

The parietal lobe is responsible for processing many sensory details. The parietal lobe is where things like, touch, taste, and temperature are handled. The parietal lobe is also responsible for things like spacial sense and navigation. If someones parietal lobe was somehow damaged or lost all together, the individual would be lacking in many sensory areas. The individual would likely not be able to sense or feel anything in terms of touch and the person would struggles to feel temperature. I don't see how survival would be possible for an infant who couldn't process touch but the chance that the individual could live still exist.