BIOLOGY 241 (BIOLOGY241)

The Core Concepts in the following chapters include: • Levels of Organization. The structure and function of the NS at the a cellular (CSF), sub- cellular (axons and myelin), cellular (neurons and neuroglia), CNS structure (different CNS regions) and organ (brain and spinal cord) levels of organization is important to understand. • Homeostasis. Particular NS structures are important in the homeostatic regulation of variables such as blood pressure, pH, osmolarity, etc. The role of sensor...

Movements related to facial expression: Epicranius 1 Frontalis (occipitofrontalis) Raises eyebrows. 2 Occipitalis Tenses and retracts scalp. 3 Orbicularis oris Compresses, purses lips (kissing). 4 Zygomaticus major Retracts and elevates corners of mouth (smiling). 5 Levator labii superioris Elevates upper lip. 6 Depressor labii inferioris Drepresses lower lip. 7 Buccinator Compresses cheeks (whistling / blowing and sucking). 8 Mentalis Elevates and protrudes lower lip (pouting). 9 Platysm...

MATCHING: Record the letter of the term that best completes the sentence (2 pts). A. inferior; B. superior; C. distal; D. proximal; E. medial; F. lateral 1. The forehead is B to the chin. 2. The nose is E to the ear. 3. The knee is D to the ankle. 4. The lungs are F to the heart. 2. The section that divides the body into superior and inferior portions is the A. frontal section. B. midsagittal section. C. oblique section. D. sagittal section. E. transverse sect...