Types of Skeletons and Their Characteristics

Types of Skeletons and Their Characteristics

Learning Objectives

At the end of the lesson you will be able to define what a jointed skeleton is.
At the end of the lesson you will be able to identify and describe the different types of skeletons and their characteristics.
At the end of the lesson you will be able to provide examples of organisms with different types of skeletons.
At the end of the lesson you will be able to understand and use terms related to the study of skeletons.

What do you already know about different types of skeletons?

Definition of Jointed Skeleton

Jointed Skeleton: A skeleton where the bones are connected by joints, allowing for movement. or

 Frame of bones

what is a skeleton

1. a frame work of bones of where bones are connected with joints
2. pudding of bones
3. neither of the 2 answers
4. is where people walk and dance around

Types of Skeletons

1. Exoskeleton: An external skeleton that supports and protects an organism's body.

 2. Endoskeleton: An internal skeleton that supports an organism's body, protects internal organs, and facilitates movement.

3.  Hydrostatic Skeleton: A type of skeleton found in soft-bodied animals that relies on fluid pressure to maintain shape and enable movement.

name 3 types of skeletons you know

1. endoskeleton
2. hydrostatic skeleton
3. exoskeleton
4. leg skeleton

Characteristics of Skeletons

1. Exoskeletons provide protection and support.

 2. Endoskeletons support the body, protect internal organs, and facilitate movement.

 3. Hydrostatic skeletons rely on fluid pressure to maintain shape and enable movement.

Examples of Organisms With Different Types of Skeletons

1. Exoskeleton: Arthropods like insects and crustaceans.
2. Endoskeleton: Vertebrates. 
3. Hydrostatic Skeleton: Organisms like worms and jellyfish.

which animal has an endoskeleton

1. mammals
2. octopus
3. insects
4. shark

Terminology Related to Skeletons

Understanding these types and their examples helps in the study of comparative anatomy and physiology.

Definition List

Jointed Skeleton: A skeleton where the bones are connected by joints, allowing for movement.
Exoskeleton: An external skeleton that supports and protects an organism's body.
Endoskeleton: An internal skeleton that supports an organism's body, protects internal organs, and facilitates movement.
Hydrostatic Skeleton: A type of skeleton found in soft-bodied animals that relies on fluid pressure to maintain shape and enable movement.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.