Lab8_Brain
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Central Texas College *
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Medicine
Date
Dec 6, 2023
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docx
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Hands On Lab: Brain (7Activities)
Submission instructions
Type your answers and copy all pictures directly into this Word document. Submit
it via the blackboard submission link in Word format (docx).
Introduction:
The brain is the control center of the body. This lab will help you understand the different
parts of the brain and their functions. Focus on being able to ID the regions/structures
and then add in their function. This is a complex, amazing organ!
Watch/Read These
:
This dissection video on the human brain is from the
Utah School of Medicine and goes
into detail on the meninges
(Link opens in new window: 15min). There are 26 other
videos on various parts of the human brain for those of you that are interested; just
scroll up and down on that site.
The two articles linked below are brief and interesting. These articles are from a few
years ago and are not peer reviewed, but are from reputable publications. They are a
good starting point if you wanted to start digging deeper into these topics.
How Much of the Brain Can a Person Do Without?
(link opens in new window)
Is this the most extraordinary brain ever seen?
(link opens in new window)
These aid in thinking about the importance of surface area in the brain and the plasticity
of the human brain.
Activity 1: Virtual Sheep Brain Dissection
In the laboratory, we dissect sheep brains because their parts and structure are similar
to the human brain. The virtual sheep brain dissection laboratory will mimic the activity
we would do in lab and teach you the basics of brain anatomy.
Virtual Sheep Brain Dissection
(opens new window)
Please see the
Module 4 Lab Study Objectives
for all of the structures you are
responsible for. You are not required to learn any markings in the virtual lab that are not
on this list.
Activity 2: Identifying Major Brain Regions
The brain is divided into four major regions. Below, you will be identifying the major
regions (A-D) in the picture AND completing the table by giving a brief description of
1
each region’s function (Ex: What is the main function of the brainstem, what’s its main
job(s)?)
Region (A-D)
Function
1.
Brainstem= Letter: C
2.
Responsible for essential functions
like sleep, heart rate, blood pressure,
maintaining consciousness and
breathing.
3.
Diencephalon= Letter: B
4.
Coordinate the release of hormones
with the endocrine system, relay
motor and sensory signals, and
regulate the sleep and wake cycle.
5.
Cerebellum= Letter: D
6.
Coordinates voluntary movements
and motor skills functions like posture,
coordination, and balance
7.
Cerebrum= Letter: A
8.
It coordinates and initiates movement
and helps in temperature regulation.
Activity 3: Brainstem and Diencephalon Subdivisions
The brainstem and diencephalon each contain 3 subdivisions. Fill in the blanks in the
table below so that each subdivision is stated and has its function and brain region
listed. Ex: the first row is asking for the function of the epithalamus which is located in
the diencephalon region of the brain. For the second row, you need to identify the
subdivision based on the given function and brain region.
2
Subdivision
Function
Brain Region
Epithalamus
9.
9.
Responsible for
melatonin secretion
and regulating
emotions and motor
pathways
Diencephalon
10.
Medulla Oblongata
Breathing/Heart rate
Brainstem
Midbrain
Sensory Reflexes
11.
Brainstem
Hypothalamus
12.
Regulates the
temperature of the
body, secretion of
hormones, thirst, and
hunger
13.
Diencephalon
Pons
14.
Diencephalon
Brainstem
15.
Thalamus
Sensory Relay Center
Diencephalon
Activity 4: Diencephalon Region Labeling
Use the diagram below to answer #16 through #21.
Write the letter from the above diagram that corresponds with the structures listed.
16. Infundibulum: D
17. Pineal Gland: B
18. Thalamus: A
3
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