CELLS & TISSUES
What is the basic unit of all living things?
The Cell
Why must estheticians understand anatomy and physiology?
Services affect body systems and skin health
Define physiology.
The study of body functions
How many bones are in the adult human body?
206
During inhalation, what enters the blood?
Oxygen
Name one accessory organ of the skin.
Any one of: sensory receptors, hair, nails, oil glands, sweat glands.
What part of the cell contains DNA?
Nucleus
How does cell metabolism affect treatment results?
It influences repair, healing, and response to products
What is an organ?
A group of tissues performing a specific function
Which bone forms the lower jaw?
Mandible
What are the five steps in digestion?
Ingestion, peristalsis, digestion, absorption, defecation
What are sweat glands also called?
Exocrine glands
What process allows cells to reproduce into identical daughter cells?
Mitosis
Why is epithelial tissue important to estheticians?
It forms the skin and protective barriers
What is the largest organ in the body?
Skin
Name one function of the skeletal system.
Protection, movement, blood cell production, mineral storage
Protection, movement, blood cell production, mineral storage
Which organs contribute to the excretory system?
Kidneys, liver, skin, large intestine, lungs
What do oil glands produce?
Oil / sebum
Which tissue type covers surfaces and forms glands?
Epithelial tissue
Which system is most involved during lymphatic massage?
Lymphatic system
Which system controls messages in the body?
Nervous system
How many facial muscles are there?
About 30
Why are accessory organs important to esthetics?
They influence skin function, protection, sensation, and treatment planning.
Which tissue supports and binds other tissues together?
Connective tissue
Why must estheticians understand scope of practice when discussing body systems?
To avoid diagnosis and work within licensure
Why must estheticians understand body systems as an integrated whole?
Because one system can affect the skin, treatment safety, contraindications, and referral decisions.
What muscle closes the eye?
Orbicularis oculi
What does the integument do in simple terms?
It acts as the body's protective covering.
Why are body mechanics important for estheticians?
Answer: To prevent fatigue and injury
To prevent fatigue and injury
Massage pressure is applied from ___ to ___.
Insertion to origin