Dissection Guide for 5th Grade

Brains, Kidneys, and Hearts Oh My!

Comparative AnatomyWhy are we doing

this?Why pigs and

sheep parts?

Overview

PreservativeNontoxicFormaldehyde freeMay irritate skin

GearNitrile GlovesDifferent sizes for

everyoneTools

Dissection KitSharp instruments!!

SAFETY FIRST

Sheep heartVery muscularBefore you cut

identify exterior features first

Once inside you will be able to view the chambers and valves

Heart

Atherosclerosis or ArteriosclerosisHarding of the arteriesIt occurs when fat, cholesterol,

and other substances build up in the walls of arteries and form hard structures called plaques.

Over time, these plaques can block the arteries and cause problems throughout the body.

Associated Human Diseases

Heart Attack or StrokeLets see it in action

TreatmentsLifestyle changesMedicationSurgery

Angioplasty

Possible Outcomes

Sheep BrainMost fragile of all of the organsBefore you cut identify exterior features

first Blood vessels will appear to be brown in

colorOptic chiasm

X marks the spot

Brain

Arbor vitae found in the cerebellum. It is known for its role in motor and

sensory information that goes to and from this region of the brain, which is the center of the body’s nervous system.

Tree of Life

InfectionsSeizures

EpilepsySeizures -- abnormal movements or behavior due

to unusual electrical activityTrauma

Injury to the brainTumors or Masses

Can be cancerous or benignVascular Diseases

Strokes

Associated Human Diseases

Pig kidneyBefore you cut identify

exterior features firstExcretory systemInjected with latex

BlueRed

Kidney

How the kidneys workhelp filter waste, excess fluid, and toxins from

your blood

Diseases that involve kidneysHigh blood pressureDiabetes

Function and Associated Human Diseases