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.
Cat Ear Anatomy â Henryâs Pocket â Why it Exists. Have you noticed that rather strange secondary ear flap attached to the main ear flap (the bit you see) in your cat? If you look carefully you see what is described as a pouch or pocket at the lower part of the ear flap (scientific name: pinna). The photo shows it: Everyone says that this pouch or pocket serves no purpose. I disagree - but cautiously - because I am not sure.