Biol 261 1st Edition Lecture 10Current lectureCHAPTER 9- One motor unit = one motor neuron- Hypertrophy: bigger- Atrophy: smaller- Slow fibers are red because of myoglobin: i.e. dark meat- Fast fibers are white: i.e. white meat- We have both slow and fast fibers- Rectus: flat or sheath- Recognize origin and insertion- Aponeurosis: flat tendon- Example:o Prime mover: triceps brachiio Synergist: anchoniusCHAPTER 10- In the calf:o Extensors: anterioro Flexors: posterioro Opposite in the arm- Axial musculature, know:These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o Every muscle in figure 10.2o External oblique’s: hands in pocketso Muscles of facial expressiono Extraocular muscleso Muscles of mastificationo Anterior muscles of the necko Sternothyroid/sternohyoido All on figure 10.3- Diaphragm: skeletal muscle- Pelvic diaphragm: no difference in male and female musculature- DO NOT NEED TO KNOW:o “glossus”o Constrictorso Elevatorso Pelatinis- DO NEED TO KNOW:o Sternohyoido Sternothyroido Digastrico Mylohyoid (lab only)o Omohyoido Sternocleidomastoid- In the vertebral column:o Erector spinae muscles (ILS)—from lateral to medial *I like spaghetti*o Scaleso Spleniuso Oblique’so Rectus muscleso Serratus anterioro Intercostalso Rectus sheatho Semilunar lineo Linea albao Tendonous inscriptionso Transverse/rectus