Hands On Lab: Brain

Grading: Divide number incorrect by total number of questions (63)

Submission instructions

If an assignment is submitted incorrectly, you will be contacted and the assignment will not be graded unless resubmitted properly. Late penalties may apply.

Type your answers and copy all pictures directly into this Word document. Submit it via the blackboard submission link in Word format (docx).

· Answers typed into a blank document or submitted in the incorrect format will not be accepted.

· Pictures will not be accepted as stand-alone files.

· Assignments may not be submitted via email without express permission from the instructor.

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.

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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)

Click on the lab and go through all of the sections. 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.

Identify the major regions (A-D) in the picture and complete the table by giving a brief description of each region’s function.

1.

2

Region (A-D) Function
2. Brainstem= Letter 3.
4. Diencephalon= Letter 5.
6. Cerebellum= Letter 7.
8. Cerebrum= Letter 9.

Activity 3: Brainstem and Diencephalon Subdivisions

The brainstem and diencephalon each contain 3 subdivisions.

Give the function of each major regional subdivision and identify which major brain region each subdivision belongs to.

Subdivision Function Brain Region
Epithalamus 10. 11.
Medulla Oblongata 12. 13.
Midbrain 14. 15.
Hypothalamus 16. 17.
Pons 18. 19.
Thalamus 20. 21.

Activity 4: Parts of the Brainstem

Identify the parts of the brainstem (A-I). Each letter will only be used once.

6

22. Superior colliculus

23. Midbrain

24. Inferior colliculus

25. Medulla oblongata

26. Cerebral peduncle

27. Corpora quadrigemina

28. Pyramid

29. Pons

30. Olive

Activity 5: Parts of the Diencephalon

Identify the parts of the Diencephalon (A-I). Each letter will only be used once.

31. Thalamus

32. Subthalamus

33. Corpus callosum

34. Pineal gland

35. Epithalamus

36. Pituitary gland

37. Optic chiasm

38. Habenula

39. Hypothalamus

40. Infundibulum

Activity 6: Functional Areas of the Cerebral Cortex

The cerebrum is the largest region of the brain and the cerebral cortex is the main gray matter for thinking. Each area and sense in the body has a dedicated area of the cerebral cortex. Sensory areas receive input for perception, motor areas initiate movements, and associative areas are involved in complex integration; memory, emotion, reasoning, and judgment.

Complete the table by matching each area of the cerebral cortex with its function and give the name of the lobe of the cerebrum it is in.

Cerebral Area Letter (A-L) Lobe
41. Primary somatosensory
42. Primary visual
43. Primary gustatory
44. Primary auditory
45. Primary motor
46. Broca
47. Somatosensory association
48. Visual association
49. Auditory association
50. Wernicke
51. Premotor
52. Prefrontal

Activity 7: Cranial Nerves

Most of the head and shoulders are under the control of one of the 12 cranial nerves, including all of the special senses, somatic senses, and motor functions.

Match the cranial nerve with its description or number (A-L). Each letter will only be used once.

53.

54. Optic

55. Olfactory

56. Oculomotor

57. Trochlear

58. Trigeminal

59. Abducens

60. Facial

61. Vestibulocochlear

62. Glossopharyngeal

63. Vagus

64. Accessory

65. Hypoglossal

A. Equilibrium and hearing

B. Speech and swallowing

C. Vision

D. Taste from posterior tongue

E. Smell

F. Taste from anterior tongue

G. Number X

H. Face sensation and chewing

I. Head and shoulder movement

J. Movement of eyeball

K. Number III

L. Number VI

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