The infantry brigade combat team, as of 2014, contains 4,413 soldiers and is organized around three battalions of infantry. Each type of brigade (light infantry, air assault, or airborne) has the same basic organization.
2.1 Structure and function of the outer and middle ear. Figure 1 is a diagram of the human ear. The outer ear consists of the visible part of the ear or pinna, the external auditory canal (meatus) , and the tympanic membrane (tympanum) or eardrum.The human pinna is formed primarily of cartilage and is attached to the head by muscles and ligaments.igure 1 is a diagram of the human ear. The outer ear consists of the visible part of the ear or pinna, the external auditory canal (meatus) , and the tympanic membrane (tympanum) or eardrum.
Joints. The humeroulnar joint is the contact point of the humerus and the ulna. It has a single axis and is therefore a synovial hinge joint that simply opens and closes. The articulating surfaces can be found between the trochlea of the humerus and the trochlear notch of the ulna. The humeroradial joint is the contact point between the humerus and the radius. It is also a uniaxial synovial hinge joint that articulates at the capitulum of the humerus and the head of the radius. The radioulnar joint has a proximal and a distal distinction, due to the fact that it is comprised of two separate joints at both the proximal and distal ends of the bones.