MS

  • Deltoids:

    • Location: Shoulders

    • Function: Abduction, flexion, and extension of the shoulder joint.

    • Attachments: Clavicle, acromion, and spine of the scapula.

    • Shape: Triangular

    • Size: Well-developed

    • Direction of Fibers: Multi-directional

    • Innervation: Axillary nerve

  • Pectoralis Major:

    • Location: Chest

    • Function: Adduction, flexion, and medial rotation of the arm.

    • Attachments: Clavicle, sternum, and ribs.

    • Shape: Fan-shaped

    • Size: Large

    • Direction of Fibers: Converging

    • Innervation: Medial and lateral pectoral nerves

  • Pectoralis Minor:

    • Location: Chest (under Pectoralis Major)

    • Function: Stabilizes the scapula

    • Attachments: Ribs 3-5

    • Shape: Thin and triangular

    • Size: Smaller

    • Direction of Fibers: Converging

    • Innervation: Medial pectoral nerve

  • Biceps Brachii:

    • Location: Upper arm

    • Function: Flexion of the elbow and supination of the forearm.

    • Attachments: Scapula (short head), radius (long head).

    • Shape: Two-headed

    • Size: Prominent

    • Direction of Fibers: Parallel

    • Innervation: Musculocutaneous nerve

  • Adductor:

    • Location: Inner thighs

    • Function: Adduction of the hip joint.

    • Attachments: Pelvic and thigh bones.

    • Shape: Varies (depending on specific muscle)

    • Size: Variable

    • Direction of Fibers: Varies

    • Innervation: Varies (depending on specific muscle)

  • Abductor:

    • Location: Outer thighs/hips

    • Function: Abduction of the hip joint.

    • Attachments: Pelvic and thigh bones.

    • Shape: Varies (depending on specific muscle)

    • Size: Variable

    • Direction of Fibers: Varies

    • Innervation: Varies (depending on specific muscle)

  • Gastrocnemius:

    • Location: Calves

    • Function: Plantarflexion of the ankle joint.

    • Attachments: Femur (two heads) to Achilles tendon.

    • Shape: Two-headed

    • Size: Well-developed

    • Direction of Fibers: Multi-directional

    • Innervation: Tibial nerve

  • Rectus Abdominis:

    • Location: Abdomen

    • Function: Flexion of the trunk

    • Attachments: Pubic symphysis and xiphoid process.

    • Shape: Rectangular

    • Size: Prominent

    • Direction of Fibers: Vertical

    • Innervation: Intercostal nerves

  • External Obliques:

    • Location: Sides of the abdomen

    • Function: Flexion of the trunk, rotation, and lateral flexion.

    • Attachments: Lower eight ribs, iliac crest.

    • Shape: Diagonal

    • Size: Well-developed

    • Direction of Fibers: Oblique

    • Innervation: Intercostal nerves

  • Quadriceps Group:

    • Location: Front of thighs

    • Function: Extension of the knee joint.

    • Attachments: Femur to patella and tibia.

    • Shape: Rectangular (four muscles)

    • Size: Well-developed

    • Direction of Fibers: Rectilinear

    • Innervation: Femoral nerve

  • Fortalis (Not a standard muscle term):

    • Consider checking the term; it might be a typo or a specific reference.

  • Trapezius:

    • Location: Upper back and neck

    • Function: Elevation, depression, and retraction of the scapula.

    • Attachments: Occipital bone, spine, and acromion of the scapula.

    • Shape: Triangular

    • Size: Broad

    • Direction of Fibers: Multi-directional

    • Innervation: Accessory nerve and branches of cervical nerves

  • Triceps Brachii:

    • Location: Back of the upper arm

    • Function: Extension of the elbow joint.

    • Attachments: Scapula and humerus to the ulna.

    • Shape: Three-headed

    • Size: Prominent

    • Direction of Fibers: Parallel

    • Innervation: Radial nerve

  • Latissimus Dorsi:

    • Location: Lower and middle back

    • Function: Adduction, extension, and medial rotation of the arm.

    • Attachments: Spine, iliac crest, and ribs.

    • Shape: Broad and flat

    • Size: Large

    • Direction of Fibers: Converging

    • Innervation: Thoracodorsal nerve

  • Hamstring Group:

    • Location: Back of the thighs

    • Function: Flexion of the knee joint and extension of the hip joint.

    • Attachments: Ischial tuberosity to tibia and fibula.

    • Shape: Group of three muscles

    • Size: Well-developed

    • Direction of Fibers: Varies (depending on specific muscle)

    • Innervation: Sciatic nerve (hamstring portion)

  • Soleus:

    • Location: Calves

    • Function: Plantarflexion of the ankle joint.

    • Attachments: Tibia and fibula to the Achilles tendon.

    • Shape: Well-defined

    • Size: Prominent

    • Direction of Fibers: Multi-directional

    • Innervation: Tibial nerve

  • Gluteus Maximus:

    • Location: Buttocks

    • Function: Extension and lateral rotation of the hip joint.

    • Attachments: Sacrum and ilium to the femur.

    • Shape: Large and rounded

    • Size: Well-developed

    • Direction of Fibers: Radiating

    • Innervation: Inferior gluteal nerve

  • Gluteus Medius:

    • Location: Buttocks (upper and outer portion)

    • Function: Abduction and medial rotation of the hip joint.

    • Attachments: Ilium to the femur.

    • Shape: Fan-shaped

    • Size: Well-developed

    • Direction of Fibers: Converging

    • Innervation: Superior gluteal nerve