L7 Flashcards
(23 cards)
In order to draw air into the lungs you have to ______ the volume of the ______ cavity
Englarge; thoracic
Inhalation/inspiration is an ______ process, meaning it involves ______ _________
Active; muscle contraction
Which of these is correct?
- drawing in air enlarges the lungs
- enlarging the lungs draws in air
Enlarging the lungs draws in air
What are the two major muscles of inspiration?
1) diaphragm
2) external intercostals
The major muscles of inspiration are _____ active during ______, both the ____ and ______ types of inspiration
Always; inhalation; quiet and forced
What are the 10 accessory muscles of inspiration?
- Scalene
- Sternocleidomastoid
- Subclavius
- Pectoralis major
- Pectoral is minor
- Costal levators
- Serratus posterior superior
- Serratus anterior
- Trapezius
- Latissimus Doris
The accessory muscles of inspiration are usually used for ______ inhalation
Forced
The ______ is the most important muscle for inspiration.
Diaphragm
The diaphragm is ____-shaped aka shaped like a __________
Dome; Parachute
The diaphragm separates the torso into ______ and _________ (aka _____ and _____)
Thorax and abdomen; upper and lower
The external intercostals are located between the ____ and are just __________ to the internal intercostals.
Ribs; superficial
The external intercostals course __________, ______ and _______ in the front and _____ and ______ in the back
Obliquely, inferior, and medially; inferior and lateral
Scalenes are muscles of the ____
Neck
Scalenes have three types:
1) anterior
2) medial/medial (largest and longest)
3) posterior (smallest and deepest)
The sternocleidomastoid is located on the ___ of the ____.
Side of the neck
The subclavius is a ______ muscle
Thoracic
The pectoralis major is ___-shaped, and is located on the ____ ___ wall of the ______
Fan, upper front wall of thorax
The pec minor lies _______ to the pec major
Deep
The costal levators are __ ____ muscles at the ___ of the _______ wall
12 small, back, thoracic
The serratus posterior superior is located at the ____ ___ portion of the ______
Upper back portion of the thorax
The serratus posterior superior muscle is _____ to the costal levators
Superior
The serratus posterior superior muscle and serratus anterior have __-____ appearances
Saw-like
The trapezius covers the ___ of ___ and ______ region and may ________ the _____ torso
Back of neck and shoulder; stabilize, upper
