A&P - Muscle Models

Biceps Brachii

Name this muscle

Biceps

Two heads

Humerus

What bone is in the arm?

Musculocutaneous Nerve

What nerve supplies the Biceps?

Elbow joint and Shoulder joint

What flexion happens in the arm?

Orbicularis Oculi

Name this muscle

Facial nerve (7th cranial nerve)

All the muscles of Facial expression are supplied by what nerve?

Masseter

Name this muscle

Masseter

Muscles of mastication which move the mandible (lower jaw)

Mastication

Chewing

Trigeminal nerve (5th cranial nerve)

All the muscles of mastication are supplied by what nerve?

Temporalis, masseter, medial pterygoid, lateral pterygoid

Name the muscles of mastication

Sternocleoidomastoid

Name this muscle

Sternocleoidomastoid

Moves neck

11th cranial nerve (accessory)

What nerve supplies the Sternocleoidomastoid?

Linea Alba

Name this muscle

Linea Alba

("White line"), less vascular. Surgeons like to use this area to do surgery

Rectus Abdominis

Name this muscle

Rectus Abdominis

What is the only muscle surrounding the Linea Alba in the abdomen?

Rectus Sheath

What covers the Rectus Abdominis?

External Oblique

Name this muscle

External Oblique

External most superficial muscle in the lateral abdominal wall

Aponeurosis

What happens when the external oblique gets closer to the abdomen?

Aponeurosis

Dense regular connective tissue, has a sheet/band structure

Inguinal ligament

What anatomical landmark creates the boundary between the trunk and the lower limb?

Inguinal ligament

Name this ligament

Trapezius

Name this muscle

11th cranial nerve (accessory)

The Trapezius is supplied by what nerve?

Pectoralis Major

Name this muscle

Normally the breasts are operated from the Pectoralis Major by a space called the submammary space

What is the relationships of the breasts with the Pectoralis Major?

Normal breasts are fairly mobile

What is the mobility of the breasts?

Cooper's ligaments

What ligaments hold the breasts in space?

It will get pulled inward and a dimple will form on the breasts

What happens if there is a tumor that forms in the cooper's ligament?

Pectoralis Minor

Name this muscle

Coracoid process

Where does the Pectoralis minor insert?

Latissimus Dorsi

Name this muscle

Lower

Latissimus dorsi originates form which limb?

Intertubercular sulcus/groove of the humerus

Where does the Latissimus dorsi insert?

Deltoid

Name this muscle

Deltoid

Contours shoulder

Posteriorly, superiorly, laterally, interiorly

Where does the deltoid surround the shoulder?

Axillary nerve

Surgical neck of humerus is associated with what nerve?

Pudendal nerve

Ischial spine of hip is associated with what nerve?

Ulnar nerve

Medial Epicondyle of humerus is associated with what nerve?

Olfactory nerve

Cribriform plate of Ethmoid is associated with what nerve running through it?

Superaspinatus

Name this muscle

Scapula (shoulder blade)

What is the superaspinatus related to?

Rotator Cuff

What group of muscles is the superaspinatus part of?

Triceps

Name this muscle

Triceps

Only major muscle in the posterior compartment of the arm

Radial nerve

All the muscles in the posterior compartment of the arm, forearm, and hand are supplied by what nerve?

Extensor Digitorum

Name this muscle

Externsor Digitorum

One major muscle in the posterior compartment of the forearm that attaches to the fingers

Supinator

Name one muscle that is part of the flexor compartment of the forearm

Gluteus Maximus

What is the bulkiest ad heaviest muscle in the human body?

Gluteus Maximus

Name this muscle

Psoas major and Iliacus

What two muscles make up the Iliopsoas?

Lumbar of spine

Where does the Psaos major begin?

Iliac Fossa

Where does the Iliacus begin?

Lesser trochanter

Where does the Iliopsoas become a conjoined tendon fused together and insert?

Sartorius (AKA tailor's muscle)

Name this muscle

Sartorius

What is the longest muscle in the human body?

Anterior compartment of thigh

Where is the Sartorius located?

Quadriceps Femoris

Name these muscles

1. Rectus Femoris

2. Vastus Intermedius

3. Vastus Lateralis

4. Vastus Medialis

Name the four muscles of the Quadriceps Femoris.

Rectus Femoris

Name this muscle

Vastus Intermedius

Name this muscle

Vastus Lateralis

Name this muscle

Vastus Medialis

Name this muscle

The strongest tendon in the human body

Vastus Medialis and Vastus Lateralis form what?

Splits

What happens to the tendon in quadriceps femorius when it meets the patella (kneecap)?

Ligamentum Patallae

After tendon splits, it changes into this ligament

A knee jerk reflex: L2, L3, and L4

What is a physician's hammer testing for when it hits the tendon?

Femoral nerve

What nerve supplies the quadriceps femoris?

Tibial Tuberosity

Where does the ligamentum patellae insert?

Hamstrings

What 3 muscles are located behind the thigh?

1. Biceps Femoris 2. Semitendinosus 3. Semimembranosus

Name all the hamstrings

Biceps femoris

Name this muscle

Semitendinosus

Name this muscle

Semimembranosus

Name this muscle

Gastrocnemius

Name this muscle

Gastrocnemius

What muscle makes the 2 heads that make the bulk of the calf?

Peripheral Heart

What is the calf also called?

65%

What percentage of blood is in the veins?

Lower extremity

Where is most the blood in the veins located?

Deep vein thrombosis (clots)

What happens the the calf if a person is in stasis?

Tibialis Anterior

Name this muscle

Tibialis Anterior

What muscle initiates walking?

It can lead to fractures

What happens if the Tibialis Anterior does not have enough stamina?

Sciatic nerve, longest nerve located in the upper outer quadrant of the buttock

What nerve is likely to be effected in case of an intramuscular injection at this location?