Unit 1: The Human Body Flashcards
What is the anatomical neutral position?
- Standing upright
- Legs together knees straight
- Toes pointing forwards
- Arms by the sides
- Palms facing forwards
Atoms…
Combine to make molecules
Molecules…
Associate to form specific cells
Cells
Structural, functional, and biological units of all living beings
Tissue
Collection of similar cells
Organ
Tissue working together for a specific function
Organ system
Collection of organs working together for body functions
Organism
Living being with cellular structure and can independently do all physiologic functions necessary for life (i.e. homeostasis)
What three things make up the integumentary system?
Skin, nails, hair
Functions of the skeletal system
- Protects organs
- Offers support, protection, and flexibility to organisms
- Forms blood cells
- Stores calcium
Major functions of the muscular system
- Produce movement
- Heat production
- Maintain posture
Anatomical organization of the nervous system
CNS and PNS
Central nervous system (CNS)
Consist of the brain located within the skull and the spinal cord located within the vertebral foramen. It is the integration and command center of the body
Peripheral nervous system (PNS)
Consists of nerves (extensions of the CNS) that connect the CNS to all other locations in the body
Endocrine System
General functions of hormones
- Help regulate: extracellular fluid, metabolism, biological clock, contraction of cardiac and smooth muscle, glandular secretion, and some immune functions.
- Growth and development
- Reproduction
