Transcript Basic Tissue - Muscle and Nerve PPT

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
Intercalated Discs
Cardiac Muscle
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 the
Calcaneal tendon
Calcaneous
Supra patellar tendon
Quadriceps 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
Neuroglia
Axon
Nerve cell body or Soma