Skeleton And Support Flashcards
What is the primary function of the skeletal system in animals?
To provide support and structure to the body.
True or False: All animals have an internal skeleton.
False
What are the two main types of skeletons found in animals?
Endoskeletons and exoskeletons.
Fill in the blank: The hard outer structure that protects and supports some animals is called an __________.
exoskeleton
Which type of skeleton is found in vertebrates?
Endoskeleton
What is the role of cartilage in the skeletal system?
To provide flexibility and cushioning at joints.
Name one advantage of having an exoskeleton.
Protection from predators.
True or False: The skeletal system is involved in the production of blood cells.
True
What is the term for the movement produced by muscles contracting against a skeleton?
Locomotion
Multiple Choice: Which of the following is NOT a function of the skeletal system? A) Support B) Movement C) Digestion D) Protection
C) Digestion
What type of muscle is responsible for voluntary movements?
Skeletal muscle
Fill in the blank: __________ muscle is involuntary and found in the walls of internal organs.
Smooth
True or False: Cardiac muscle is found only in the heart.
True
What is the main difference between smooth and skeletal muscle?
Smooth muscle is involuntary, while skeletal muscle is voluntary.
What is a joint?
A point where two bones meet.
Multiple Choice: Which type of joint allows for the greatest range of motion? A) Hinge B) Ball-and-socket C) Pivot D) Saddle
B) Ball-and-socket
What is the role of tendons in the muscular system?
To connect muscles to bones.
Fill in the blank: __________ are the basic functional units of muscle tissue.
Muscle fibers
True or False: Animals with exoskeletons can grow continuously without molting.
False
What is molting?
The process of shedding an old exoskeleton to allow for growth.
What are ligaments?
Tissues that connect bones to other bones at joints.
Multiple Choice: Which animal group primarily utilizes hydrostatic skeletons? A) Mammals B) Arthropods C) Annelids D) Birds
C) Annelids
What is the primary component of bone tissue?
Collagen and minerals, primarily calcium phosphate.
Fill in the blank: The __________ system includes all the muscles that enable movement in an animal’s body.
muscular
What is the primary function of the muscular system?
To facilitate movement and maintain posture.
True or False: All animals use the same type of skeletal system.
False
What is an example of an animal with a hydrostatic skeleton?
A jellyfish.
Multiple Choice: Which type of joint allows for rotation around a single axis? A) Hinge B) Ball-and-socket C) Pivot D) Gliding
C) Pivot
