Example: If you purchase $20,000 of marginable stock with a 30% house margin requirement, you would need to initially deposit $10,000, which is the 50% Fed requirement. You would not need to deposit additional money beyond the $10,000 because the house maintenance requirement is below the 50% Fed requirement.
Temporalis. The temporalis is a fan-shaped muscle that covers the side of the head. This muscle closes the jaw, elevates and retracts the mandible, assists in side-to-side movements and maintains the position of the mandible at rest.
The pterygoid muscles (âwing musclesâ) are two jaw muscles located on the inner surface of the mandible. 1  Medial pterygoid muscle: originates from the pterygoid fossa and pterygoid process of the sphenoid. 2  Lateral pterygoid muscle: has two heads which lie almost horizontally to each other.unction. The pterygoid muscles are muscles of mastication and serve the movement of the temporomandibular joint. The contraction of the medial pterygoid elevates the mandible (jaw closure) and moves it forward (protrusion).