EMT Chp. 5-9 Flashcards
What is the term for the front surface of the body?
Anterior (ventral)
The back surface is referred to as Posterior (dorsal).
What is the term for the back surface of the body?
Posterior (dorsal)
The front surface is referred to as Anterior (ventral).
What does the term ‘superior’ refer to?
Closest to the head
The opposite term is ‘inferior’, meaning closest to the feet.
What does the term ‘inferior’ refer to?
Closest to the feet
The opposite term is ‘superior’, meaning closest to the head.
What is the definition of ‘proximal’?
Closest to the point of attachment
The opposite term is ‘distal’, meaning farthest from the point of attachment.
What is the definition of ‘distal’?
Farthest from the point of attachment
The opposite term is ‘proximal’, meaning closest to the point of attachment.
What is the anatomical position when lying face down?
Prone
What is the anatomical position when lying face up?
Supine
What is the position called when a patient is sitting upright?
Fowler
How many bones compose the axial skeleton?
80 bones
This includes cranium, facial bones, ear bones, and vertebrae.
What are the names of the divisions of the spinal column?
Cervical, Thoracic, Lumbar, Sacrum, Coccyx
Each division contains a specific number of vertebrae.
What muscle separates the thorax from the abdomen?
Diaphragm
What is the function of the epiglottis?
Covers the larynx to prevent contact with solid or liquid materials
What are the components of the upper airway?
- Nasopharynx
- Oropharynx
- Laryngopharynx
- Larynx
What are the components of the lower airway?
- Thyroid Cartilage
- Cricoid Cartilage
- Cricothyroid Membrane
What is the difference between respiration and ventilation?
- Ventilation: movement of air between lungs and environment
- Respiration: gas exchange providing oxygen to cells and removing carbon dioxide
Define diffusion.
A passive process where molecules move from high to low concentration
What stimulates the body to breathe?
The buildup of carbon dioxide and the pH change in the cerebrospinal fluid
True or False: The hypoxic drive is the body’s primary system for stimulating breathing.
False
The hypoxic drive is a backup system when oxygen levels fall.
What are agonal respirations?
Occasional gasping breaths that are inadequate
What are the characteristics of normal breathing?
- Normal rate and depth
- Regular rhythm
- Clear breath sounds
- Regular chest movement
- Abdominal movement
Define cardiac output.
The amount of blood moved in 1 minute
Calculated as CO = HR x SV.
What is the function of platelets?
Help with the initial formation of blood clots
Which arteries do not carry oxygenated blood?
- Pulmonary Artery
- Aorta (only carries oxygenated blood)
Define systole.
When the left ventricle contracts and pumps blood into the aorta
Define diastole.
The time between contractions when the ventricle is relaxed
How much blood does the average adult have in their body?
6 Liters
What happens in the body when too much blood is lost?
Patient goes into shock
What are the functions of the skin?
- Protects from the environment
- Maintains normal body temperature
- Transmits sensory information
What percentage of oxygen is in the air we breathe?
21%
What percentage of oxygen is in the air we exhale?
16%
Neonates are primarily _______ breathers.
nose