head,neck & face
this powerful muscle of mastication elevates the mandible to close the jaw while chewing
masseter
this two-headed muscle on the anterior arm flexes the elbow joint n supinates the forearm
biceps brachii
this segmenyed anterior abdominal muscle flexes the vertebral column commonly referred to as 'abs'
rectus abdomins
this large muscle group on the anterior thigh extends the knee its component is the rectus femoris
quadriceps femoris
the three primary types of muscle tissue found in the human body
skeletal, cardiac, and smooth
name the three bony origins/insertions this neck muscle flexes the neck n rotates the head
sternocleidomastoid
this large fan-shaped chest muscle adducts and flexes the humerus across the chest
pectoralis major
this dome shaped primary respiratory muscle contracts vertically to expand the thoracic cavity for inhalation
diaphragm
this prominent superficial calf muscle flexes the foot (plantar flexion) and flexes the knee
gastrocnemius
this functional unit of a myofibril contracts action and mysin filaments slide past one another
sarcomere
specialized intercalated discs containing gap junctions are a unique microscopic feature of this muscle tissue
cardiac muscle
this triangular shoulder muscle is the primary abductor of the upper arm
deltoid
these superficial abdominal muscles on the lateral trunk assist with rotation and lateral flexion of the torso
external oblique
the largest muscle in the human body and responsible for extension and lateral rotation of the hip joint
gluteus maximus
this tough connective tissue binds muscle to bone unlike ligaments which bone to bone
tendon
this dense layer of connective tissue surrounds the entire skeletal muscle belly
epimysium
located on the posterior upper arm this three-headed muscle extends the elbow joint
triceps brachii
erector spinae
this posterior thigh muscle group flexes the knee joint it includes the biceps femoris
hamstings
movement of the limb away from the body's midline is abduction, and movement toward the midline is known as this
adduction
unlike ligaments which attach bone to bone, these dense regular connective tissue structures connect muscle to bone
tendons
known as the 'swimmers muscle' this broad muscle of the lower back extends n adducts the humerus
latissimus dorsi
this large diamond shaped muscle of the upper back elevates depresses and retracts the scapula
trapezius
located on the lateral shin this muscle dorsiflexes and inverts the foot weakness causes 'foot drop'
tibialis anterior
this metabolic byproduct accumulates in muscle tissue during intense anaerobic exercise, contributing to fatigue
lactic acid