The Muscles of Respiration

A Little Bit of Everything

100

Abby: The central tendon is inserted into what major muscle of inspiration in order to provide strength?

The diaphragm

200

Abby: What muscle used during inspiration is responsible for clavicular breathing?

The trapezius muscle

300

Abby: What muscles can work when the diaphragm is paralyzed, ensuring air still gets to the lungs?

The intercostal muscles

400

Leslie: Name the three openings of the diaphragm.

-Foramen vena cava

-Aortic hiatus

-Esophageal hiatus

500

Madison: What do you call the midsagittal line that can be seen on the abdominal aponeurosis?

The linea alba

What Can It Do For You?

100

Olivia: What muscle is responsible for quiet respiration?

The diaphragm

200

Olivia: What are the external intercostal muscles responsible for doing during respiration and how?

The muscles are responsible for elevating the ribs. Each muscle does this by raising the rib below its origin.

300

Olivia: The transversus thoracis muscle is responsible for what action during respiration?

The transversus thoracis muscle is responsible for depressing the costal cartilages and ribs 2 through 6.

400

Olivia: What sizable aponeurosis is responsible for providing "significant strength" to the diaphragm?

The central tendon

500

Madison: What is the function of the inguinal ligament?

The ligament is responsible for attaching tendons to the pelvic girdle.

Location, Location, Location

100

Ella: Where is the location of the pectoralis major muscle?

200

Ella: What muscle is in the middle of the most superficial abdominal muscle (external oblique abdominis) and the deepest abdominal muscle (the transversus abdominis muscle)?

The rectus abdominis muscle

300

Ella: What is the origin and insertion points of the internal intercostal muscles?

-Origins: Superior border of R2- R12

-Insertion: Inferior border of the rib above the origins (R1-R11)

400

Leslie: What are the origin and insertion points of the external intercostal muscles?

Origin: Inferior border of rib R1 through R11

Insertion: Superior border of ribs below the origin (R2-R12)

500

Madison: What are the three origin points of the latissimus dorsi muscle?

1. The spine along the lower thoracic vertebrae

2. The lumbar vertebrae

3. The sacrum

You're My Inspiration

100

Araceli: What muscle is also responsible for rotating the head in addition to helping with inspiration?

The sternocleidomastoid muscle

200

Araceli: What muscle is responsible for elevating the first two sets of ribs and can be seen in anterior, medial, and posterior positions?

The scalene muscle

300

Araceli: The origin of the serratus posterior superior muscle can be found where?

The spinous processes of the C7 vertebrae down to the T2 of the thoracic spine

400

Leslie: The picture below shows what muscle involved in inhalation?

The serratus anterior muscle  

500

Allison: What muscle used in the inspiration of breath is also used as a stabilizing support for the superior thorax of the human body?

The trapezius muscle

... And Exhale

100

Mia: What is the name of the most superficial muscle that is responsible for depressing the ribs and abdominal cavity?

The external oblique abdominis muscle

200

Mia: What is the deepest muscle used for expiration?

The transverus abdominis muscle

300

Mia: This muscle is needed during exhalation to compress only the ribs eight through 12.

The serratus posterior inferior muscle

400

Allison: What muscle utilized in expiration has its origins in the pubic bone and is used to depress the sternum?

The rectus abdominis muscle

500

Allison: The posterior lumbodorsal fascia is responsible for connecting muscles to what two areas of the body?

1. The lumbar vertebrae 

2. The iliac crest