Basic Tissue Types #3 and #4 Muscle and Nerve

Danny Quirk – Beautiful Decay

Japan – 2006 by the same people who brought us The Ring

Muscle Tissue

Skeletal Muscle

• Principal function is to move the skeleton

• Referred to as striated due to the alternating light and dark bands of protein

• Primarily voluntary

• Some is controlled unconsciously (for example the diaphragm)

Skeletal or Striated Muscle

Cardiac Muscle

• Found only in the heart

• Is striated like skeletal muscle, but acts in a voluntary function

• Cannot be consciously controlled

• Has an autorhymicity not found in most other muscles

Cardiac Muscle

Intercalated Discs

Smooth Muscle

• Located in the walls of hollow internal structures such as blood vessels and airways

• Attached to hair follicles in the skin

• Lacks striations

• Acts involuntarily

• Has a degree of autorhymicity, particularly when it comes to propelling food through the GI tract

Smooth Muscle

Tendons and Ligaments

Tendons and Ligaments

• Tendons connect muscle to bone

• Ligaments connect bone to bone

• Both are composed of dense regular connective tissue

AKA – the Gastrocemius tendon or theCalcaneal tendon

Calcaneous

Supra patellar tendonQuadriceps tendon

Infra patellar tendon

Nerve Tissue

• Nerve tissue consists of two types of cells:

• Neurons that carry out most of the unique functions of the nervous system such as sensing, thinking, regulating glandular secretions and controlling muscle activity

• Neuroglia cells which support, nourish and protect neurons

Typical nerve cell showing the soma,Dendrites and axon

Nerve cell body or SomaAxon

Neuroglia