What are the functions of bones?
Protect the organs, give us structure and allow us to move.
What are the functions of muscles?
They move the bones and some organs: the heart( pumping blood), the diaphragm (breathing) and the intestines (moving the food and waste substances)
What attaches the muscles to the bones?
Joints
Tendons
The Skeleton
They are pieces of hard tissue
TENDONS
MUSCLES
BONES
What do we call the places where two or more bones connect?
Tendons
Skeleton
Joints
What is a neuron?
It is a star-shaped cell that transmits impulses.
What are nerves made from?
They are made from neurons.
The _______________________ send impulses from the brain to the effectors (muscles and bones)
SENSORY NERVES
MOTOR NERVES
The ___________________ send signals from the receptors (sense organs) to the brain.
SENSORY NERVES.
MOTOR NERVES.
The peripheral nervous system is made up of:
the encephalon and the spinal cord.
nerves
The cerebellum is a part of the central system that...
controls voluntary actions like dancng and jumping
controls involuntary actions like breathing and heartbeat.
transports information.
The brain stem is a part of the central system that...
controls involuntary actions like breathing and heartbeat.
controls voluntary actions like dancng and jumping
transports information.
What protects the spinal cord?
The backbone.
The ribs and sternum.
The skull.
What are the changes boys experience in puberty?
The penis and testicles grow, and the hips widen.
The penis and testicles grow, hair grows in the pubic area.
The penis and testicles grow, hair grows in the chest.
What are the changes girls experience in puberty?
Breasts grow, hips widen and we get the period.
Breasts grow, hair grows in the chest and we get the period.
What are these?
The testicles
