Fetal Pig Dissection Pre-Lab

Read the pre-lab directions and questions entirely. Identify the questions that you will need to research vs. the questions you can answer using your prior knowledge from class vs. the questions you can answer using what you read in the lab directions.

Did you read and think about the pre-lab directions and questions?

• yes

• no -- wrong answer

Mammals are _______.

• vertebrates

• invertebrates

The majority of mammals are placental mammals. What is a placenta?

• the place where a fetus grows inside it’s mother

• the type of food a fetus eats

• an organ that develops in the uterus during pregnancy, which is the source of food and oxygen for the fetus

• a hollow muscular organ located in the female pelvis between the bladder and rectum

What is an organ that develops in the uterus during pregnancy, which is the source of food and oxygen for the fetus?

• liver

• heart

• placenta

• pelvis

Are fetal pigs killed for the purpose of dissection?

• yes

• no

During this lab, students will examine ______.

**Select 2 correct answers.

• the external structures of the fetal pig.

• the internal structures of the fetal pig.

• types of domesticated animals

• how muscles contract

When should students where lab aprons and eye protection during this lab?

• All the time. These pigs are injected with chemicals that can squirt out at any time. Please wear safety gear whenever you are in the lab and any group is working with a fetal pig.

• Just when your group has a pig out in the lab. If your pig is put away and another group in the lab is working, you don’t have to wear safety gear.

• Wait what? That’s not a big deal. It’s not in bold print on the first page of the lab directions or anything.

What are unborn pigs called?

• fetal

• sporophyte

• squab

• colt

When laying the pig in the dissecting pan, students are to locate the dorsal surface.

What does dorsal mean?

• the abdominal area

• the feet

• the head

• the back area

What is gestation?

• process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote

• the period of time when something is conceived and developed

• a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote

Tags

NGSS.HS-LS1-4