Tuesday March 7, 2015

LT: I can investigate and analyze the internal and external structures of organisms to better understand human body systems.

Name:___________________   Date: ____________________        Class Period:_________

Organism Dissection Pre-Lab

Purpose: Today your job is to prepare yourself for dissection spread across 3 days, during which time you will perform a complete dissection of an organism. On the first day you will locate and identify various muscles. On the second and third days you will cut the organism open to locate and identify the internal organs.

Part 1: Review of Classroom Rules and Member Roles

Classroom Rules:

1. Absolutely no food or drink allowed in lab (due to health and sanitation reasons).
2. Follow directions the first time they are given.
3. Perform only authorized dissections.
4. Wash and dry the equipment you use during dissection.
5. Wash and dry your desk/lab station at the end of the hour.
6. Bring your copy of this Pre-Lab and your Dissection Packet to class on each dissection day.

Violation of these rules, the rules in the original safety contract, failure to participate or unsafe behavior will result in loss of points. THERE WILL BE NO WARNINGS!

I agree to the above rules and understand the consequences of my failure to follow these rules:

Group Member #1 Signature: ______________________________________________     Date: _________

Group Member #2 Signature: _______________________________________________ Date: _________

Group Member #3 Signature: _______________________________________________Date: _________

Group Member #4 Signature: ________________________________________________Date: _________

Member Roles:

Talk with your group members today to delegate the following duties. You may also agree to rotate roles after the first day.

Reader/Director (1): _______________________________

ü  Reads the lab procedure.

ü  Makes sure group members are following along and on task.

ü  Narrates and video documents group project.

Equipment Manager (1): _________________________________

ü  Gets the equipment from the supply area.

ü  Inventories and inspects the lab equipment.

ü  Washes and dries the lab equipment at the end of the lab period.

Dissectors (1-3): ___________________________________

ü  Performs the actual dissection.

ü  Must wear gloves.

ü  Prepares the mink for storage.

 Part 2: Background Research

Work with your lab group to research your organism online and answer the following questions:

My organism is: ____________________________________________________________

1. What are the physical characteristics of your organism? What does it look like? Describe it. (Slimy, green does it have a tail)

___________________________________________________________________________________

2. What family of animals does your organism belong to? _______________________________________

____________________________________________________________________________________

3. What animals are closely related to your organism?  __________________________________________

____________________________________________________________________________________

4. Where and in what type of environment does your organism generally live? _______________________

____________________________________________________________________________________

5. What does your organism  generally eat? ____________________________________________________

_____________________________________________________________________________________

6. What animals eat your organism?___________________________________________________________

          _______________________________________________________________________________________

Part 3: Dissection Vocabulary

Use your book or an online source to define the location and function of the following body parts:

Trachea = ____________________________________________________________________________________

Esophagus = ____________________________________________________________________________________

Heart = ____________________________________________________________________________________

Lungs = ____________________________________________________________________________________

Diaphragm = ____________________________________________________________________________________

Liver = ____________________________________________________________________________________

Stomach = ____________________________________________________________________________________

Intestines = ____________________________________________________________________________________

Pancreas = ____________________________________________________________________________________

Spleen = ____________________________________________________________________________________

Ventricle = ____________________________________________________________________________________

Part 4: Dissection Vocabulary

Draw a detailed and labeled diagram of your organism. Use the vocabulary words to help. See the example below.

Kidneys = ____________________________________________________________________________________

Urinary Bladder = ____________________________________________________________________________________

Ovaries = ____________________________________________________________________________________

Testes = ____________________________________________________________________________________

Penis = ____________________________________________________________________________________

Example:

Cranial/Anterior = Toward the head/front

Dorsal =Toward the back

Proximal = Toward the point of attachment

Lateral = Away from midline

Medial = Toward the midline

Caudal/Posterior = Toward the tail/back

Ventral = Toward the belly

Distal = Away from point of attachment

Part 4: Preparing Your Dissection Kit

1. Select a tray and a pad from the supply area.
2. Use the following guide to make sure the kit contains the appropriate tools for your dissection.
3. This is the kit you will use each day for your dissection.
4. Using a piece of tape, write your group member names on the tray and your supplies

(In Addition of a tray and a pad)

Required Tools for Mink Dissection:

ü  1 pair scissors

ü  1 pair tweezers (with teeth)

ü  1 sharp probe

ü  1 scalpel

**When you have completed all parts of this pre-lab, show this packet to your teacher. This packet must be completed and approved by your teacher before you can begin dissection.***