What is a reflex? Give an example.
A quick, automatic, involuntary response, for example pulling your hand away from something hot.
True or False: The spinal cord prepares complex responses.
False
Where are taste receptors located?
In the papillae on the tongue.
How long does gestation last in humans?
Nine months
What carries signals from sense organs to the central nervous system?
The sensory nerves.
What do receptor cells do?
They react to stimuli and generate signals.
What is puberty and when it happens?
The period when the reproductive system matures. Between 10 and 16 years old (approximately).
Do skeletal muscles work voluntarily or involuntarily?
Voluntarily
Which sense perceives vibrations in the air?
Hearing
How can you keep your effector organs healthy? (Mention two habits.)
Follow a healthy balance diet / Maintain a healthy body weight / Do daily exercise / Be mindful of your posture/ Get enough sleep
What is the function of the reproductive system?
To produce offspring
What is a stimulus?
A stimulus is a change inside or outside the body that produces a response.
What happens if fertilisation does not occur?
The ovum, uterine tissue, and blood are expelled (menstruation).
Where are ova produced?
In the ovaries.
Which nerve sends visual information to the brain?
The optic nerve.
Which organs detect stimuli?
The sense organs
Why do muscles need a lot of energy?
Because they use energy to contract and produce movement.
What are the three main components of the locomotor system?
The skeleton, the muscles, and the joints.
What happens to the embryo after implantation?
It grows and develops into a foetus.
What part of the ear sends signals to the brain?
The cochlea (through the auditory nerve).
What connects muscles to bones?
Tendons.
What are the male and female gametes called?
ovum and spermatozoa
What is birth?
The process in which the baby is pushed out of the uterus through the vagina.
What is fertilisation?
The union of an ovum and a spermatozoan to form a zygote.
What are the three stages of the interaction function?
Detecting stimuli, preparing a response, and executing the response.
What is the function of the peripheral nervous system?
It connects the body to the central nervous system through nerves.